Of Course, but you can assume that current attach rate for U4 will be similar for PS4 bigger instal base, same goes for Halo 5 and XB1.

Attach rate is a silly thing and should only be used in total software of each plataform, not with individual games. It is like drawing a straight line of growth based on previous growth.

Gamecube sold 22 millions. Wii sold 100 millions, that is equal to 380-400% of growth. Should the Wii U have sold 460-500 Millions of units by that logic ?

I do think there are more variables to the amount of games sold on one console but to refute userbase is illogical. There will be games that will certainly sell to few people regardless of the userbase just like there are exceptions like Mario Kart WiiU and Halo 3... but what is the reason most multiplats sell better on the larger userbase? I know perfectly there are exceptions but to say userbase has no effects on sales is wishful thinking.  

No, totally logical. I talk about facts not about if same game or franchaise have stable sale. Like I wrote: game will sell better on bigger instal base than on smaller, clear fact. Imagine that PS4 has instal base of around 20m, logical assumption (and following current attachment rate for that specific game) would be that U4 would sell around 2m instead of 4m on 40m instal base. There is nothing illogical here.

I already wrote that comparing sales of two games on two platforms where one platform have twice bigger instal base than other doesn't make any sense.

I appreciate that.  I shouldn't have gotten nasty either.

Lol, who said anuthing about growth of next platform or next game compared to previous!?

I talking about curent platform and curent game. U4 on PS4 curently has attach rate of around 9% on instal base of around 45m, we can assume that will be similar attach rate for U4 even when PS4 has sales of around 80m, same goes for Halo 5 attach rate on XB1 instal base.

There is no logic in assume ps4 userbase were half uc4 would also be half or that x1 sale Doubling would lead to double sales.

Would splatoon sell 50M if released on Wii? would halo 5 sell 20M if released on x360?

Still waiting a proof of this logic of yours. 

No problem. 

Why can we assume that? you are still making this claim with no proof or root in reality. 

Yes actually totally have sense, especially if you look attach rate.

You missing point, it not about point how much would Splatoon would sell on Wii (totaly difrent platform and time), or Halo 5 on Xbox 360, but for instance how much Splatoon would sell on twice bigger Wii U install base, obvious and more logical answer would be around twice better. If instal base of Wii U is twice lower, sales for games would be around twice lower, including Splatoon. For instance I were pay attention on sales of MK8, attach rate of MK8 on Wii U was constantly around 50-60% (you basically had on 1m Wii U sold consoles around 500-600k sold copies of MK8), that basically proves that my point, higher instal base higher sales for game.

Onother example that proves my point, look at sales of Call of Duty: Black Ops 3, on PS3 /Xbox360 and on PS4/XB1. You will see that sales of that game are identical on PS3 and Xbox360, but that game is sold twice better on PS4 than on XB1. Why do you think is like that!? Beacuse of instal base offcourse, PS3 and Xbox360 have identical instal base and sales of that game are identical, while PS4 has twice bigger instal base than XB1 and that directly effecting on sold copies, because its logical that same game will sale better on bigger instal base than on lower.

http://www.vgchartz.com/gamedb/?name=Call+of+Duty%3A+Black+Ops+3

You basically saying that instal base does not effect on sales of games!? You trying to say that U4 sales would be same on PS4 if instal base were 30m, 20m or 10m, instead of 45m!? Will U4 continue to sell, offcourse, beacuse more people will buy console and some of them will buy U4, basicly higher instal base wil affect on higher sales of game, and if we look curent attach rate around 10% of new owners will buy U4.

 no one here said it have no impact, what we have said over and over is that the impact is nowhere what you try to imply. 

And yes I don't think ps4 being 20, 40 or 100M would deviate much the end sales of uc4 from the 8-10m. but going on your argument it would be 5, 10, 25M sales on those userbase, does it sem logical? so how do you explain that uc1 through 3 haven't increased sales on the same ratio of the userbase.

1. Yes. I explicitly said that it was selling faster because it hasn't been on sale as long. Which means that it's sales lead will only grow in the coming months because it has managed to sell more retail copies than Halo 5 in less than half the time.

2. I don't understand what you mean by "its been at 4m for the past couple of months"

3. Halo 5 was the best selling game digitally on the Xbox One first week at the time. which is great, but we don't really know what that means long term.

4. So essentially what you're saying is that until you are given 100% concrete proof that Uncharted 4 has outsold Halo 5. You're going to just assume Halo 5 has sold better?

5. Critically Halo 4 doesn't measure up to the other mainline Halo games, and with 5 sales seem to be reflecting the dip in quality since 343 took over the franchise.

Yes actually totally have sense, especially if you look attach rate.

You missing point, it not about point how much would Splatoon would sell on Wii (totaly difrent platform and time), or Halo 5 on Xbox 360, but for instance how much Splatoon would sell on twice bigger Wii U install base, obvious and more logical answer would be around twice better. If instal base of Wii U is twice lower, sales for games would be around twice lower, including Splatoon. For instance I were pay attention on sales of MK8, attach rate of MK8 on Wii U was constantly around 50-60% (you basically had on 1m Wii U sold consoles around 500-600k sold copies of MK8), that basically proves that my point, higher instal base higher sales for game.

Onother example that proves my point, look at sales of Call of Duty: Black Ops 3, on PS3 /Xbox360 and on PS4/XB1. You will see that sales of that game are identical on PS3 and Xbox360, but that game is sold twice better on PS4 than on XB1. Why do you think is like that!? Beacuse of instal base offcourse, PS3 and Xbox360 have identical instal base and sales of that game are identical, while PS4 has twice bigger instal base than XB1 and that directly effecting on sold copies, because its logical that same game will sale better on bigger instal base than on lower.

http://www.vgchartz.com/gamedb/?name=Call+of+Duty%3A+Black+Ops+3

You basically saying that instal base does not effect on sales of games!? You trying to say that U4 sales would be same on PS4 if instal base were 30m, 20m or 10m, instead of 45m!? Will U4 continue to sell, offcourse, beacuse more people will buy console and some of them will buy U4, basicly higher instal base wil affect on higher sales of game, and if we look curent attach rate around 10% of new owners will buy U4.

1- What do you expect?  UC4 has twice the User base and the game is still fresh on the market for new PS4 owners. It’s going to outsell Halo 5 because Halo 5 is a year old.  UC4 is also going to be bundled so expect a lot of giveaway sales. *If Halo 5 was on the PS4 than it would be selling a lot better than the XB1 version which means it will be outselling UC4 on the PS4*

 2- They announced Halo 5 sold over 4m a while ago, Digital sales included would lead to a much bigger number now. I highly doubt its sitting on 4.2m. Especially since it has been a top selling Digital game for Xbox. *You want to know why I stress this point. Because I brought Halo 5 Digital and so have all my hard-core Halo friends. Every one I know in Australia brought this game digitally* in saying that I am not saying it didn’t sell physically well. However unlike the 360 days where we all went out and brought the game on Disc, this gen most of us changed and went digital. To not include Digital sales is excluding a lot of the Halo faithful who actually brought this game. Now I am only assuming numbers here but I can bet you Halo 5 has sold well on the Digital front and I am not talking about 50k increase either. Possibly half a million+ sounds about right if we take in 343 statement.

 3- That should say a lot about my previous statement. *Did UC4 top its digital sales count? How did that sell digitally? I’m curious*

 4- So we all want to assume that UC4 outsold Halo 5 based off VG Numbers and excluding digital sales where one game seems to have done well in? Ok but that’s twisting then rules just to gain a small victory that isn’t even official. We can guarantee Halo 5 isn’t sitting on 4.2m, we know it’s a lot more. For all we know it could be sitting on 4.9m.

5- Sooooo Halo has been on the decline since 343? You do know that Halo 4 is made by 343 correct? That Halo 4 sits as the 3rd bestselling Halo game of all time just under Reach by less than 20k? How is that in decline when 343 have only made 2 mainline Halo games where 1 is a huge success and the other is just a success? Halo 5 will most likely end up out outselling Halo 1.. I don’t understand this decline statement. I’ll give Halo 5 the benefit of the doubt since its decline on sales is more to do with the platform it’s sold on. No one will argue that Halo 5 would have sold better on the PS4, so that tells a lot. Halo 5 practically carried the XB1, not many games can do that. Its attach rate is up there with the best this gen. Also 343 Halo games have made a lot more money so I am sure MS don’t care about how many discs they sold, they will be looking at their bank accounts and seeing blockbuster results. Physically sales don’t determine a games success over the other. I always love these statments when gamers assumed something is in decline. Halo 5 made a small fortune for MS and Halo 6 will be no different.

That isn't how it works, we aren't talking about oil sales or any other thing. The consumer has hundreds/thousands of games to chose from and Installbase's influence has a limit in those sales. But, for you, it has unlimited and exactly proportional influence.

Mario Kart sold nearly the same on GmaeCube than it did on the Wii U, won't take that into account ?

Metal Gear Solid's franchise has almost the same number of sales between plataforms with 100-155-80 millions of installbase.

Call of Duty is selling more on the PS4 because   it is a worldwide success while the Xbox is just a USA and UK's success. Playstation is very popular in  Europe, as always, where Uncharted has the majority of sales. The Xbox is more popular now on the USA than it was when Halo 3 launched, 75-80% of Halo sales are on the USA. But, even so, it underperformed and sold less than 1/3 of what Halo 3 did on launch with some millions more  people to purchase in the market where it sells the most.