What other AAA title launched on the PS4 besides Horzion Zero Dawn during that week?

You can repeat the same argument 50 more times, but it still won't change what I already stated:

1. Yes, there is a huge difference between the install base of each console.

2. That's one side of the coin. Ignoring the other side, which you did, is disingenuous.

My argument was that your statement doesn't take everything into account, hence why it is flawed.

Now feel free to tell me for the fourth time in a row the difference in install base an ignore everything else I stated.

Sadly the source doesn't state how much units of the game were sold in the UK, so I just go with my hypothethical number and say 100k. Were I already said, that would be just 1,8% of the people who own a PS4 in UK. So, the rest of 98,2 % didn't bought the game for various reasons.

"Zelda has zero competition. If you bought a switch, you most likely also bought Zelda. There aren't many other reasons to do so."
That competition is limited by how many devices you can sell to the UK, which were only 80.000. And not everyone seems to like Zelda or bought it as a digital version which will not be listed in that statistic.

"A ps4 owner has thousands of other options and may as well wait to buy it later on when it gets a price cut. Same can't be said for the Switch."

How many AAA exlusive titles came out during that month for the PS4? Maybe they filled a drought with the game? Maybe they build a hype for that game. Did you took those things also into account? But this falls with my argument were I said, that the attach rate could be only 1,8%.

That's all the points you had, and they simply don't hold.  

So, 5.3M owners being able to purchase 500 or so games - let's say 530 to make the division exact (there's actually over 700 games).

vs.

80,000 owners being able to buy 1 game.

That's a ratio of 10,000 owners to game for the PS4 vs 80,000 owners to game for the Switch.

We're not even counting the WiiU sales here.

Is this supposed to be a joke?

You count every single game on the PS4 library, but ignore every other game on the Switch at the same time.

Thanks, now I know what to think of your reasoning.

You saying that they don't hold, doesn't magically make them so. That's not how an argument works.

1. Again with the number of swiches sold. Nice. 4th time in a row and has nothing to do with my point. Didn't say that everyone likes Zelda, hence the "most likely" part. Feel free to pay closer attention next time.

2. Several AAA and non AAA exlusives came out. Ps4 owners have backlogs that Switch owners don't since this is the very begining of the console. As for the rest of your point, I'm not sure what you're trying to say. It's not phrased well.

No, not every PS4 game - as I said there are over 700 games in the PS4 library.

I am very happy, we gamers have had a wonderful time in recent months. And also the next weeks & future look fantastic :)

They don't hold because I already stated why. You still havn't showed me a valid argument why I should think otherwise.

Again, you say Zelda has Zero competition, yet ignore the fact that people make lots of comparisions between those 2 games even on this board. Second, there is only a limited number of Switch Units available for people to actually buy the game as I already stated to you, which you still don't get why Horizon sold better than Zelda. If there were twice as more Switch units available for the UK at launch, guess which game would be on top. And like I said, we don't know the certain numbers of software sold. But I doubt that it is higher than 120k.  Again, even if PS4 has thousands or even millions of other options, this is just in favour for my argument. Because as I said, the attach rate could be around 1,8 % depending of how many software were sold. Thus more than 90 % of PS4 gamers didn't care about Horizon Zero Dawn or bought something else.

We got an attach rate of 78% vs less than 10%? So, what are you trying to sell me?

So Horizon beated games like Destiny in their opening week pretty impressive if you ask me.