hmmm what the hell is wrong with Halo 3? It's one of the best games this gen in my opinion...and MANY review sites.

Anyway, mgs4 is a system seller but i don't know exactly how much it will affect ps3 sales. 

Maybe as much as GTAIV?  

 you obviously do not follow games journalism do you. I mean, come on you live in the UK, it's in every big newsagents!

Concerning the hate for the 10/10 Halo 3 score...

I back up everybody who says it didnt deserve it

First, I think that MGS4 will have some major impact on PS3 sales the coming month, but beyond that, very little. I simply cannot see people this autumn going "I need a PS3 because it had MGS4!". Much as I cannot see any game having that effect.

About MGS4 being a nisch game... Who said that being nisch or not had anything to do with sales? If a game appeals to the entire market it's a mainstream game, if it appeals to only a part of the market, it's a niche game, right? Has nothing to do with sales, imo. And that's all I'm going to say about that. I'm not in a position (and neither are most of you) to say which category it really belongs in.

I could see PS3 sales going up to about 450k tops release week, and going back to original levels (or thereabouts) within 4 weeks of release.

It'll be interesting to see how Nintendo moves. When GTAIV was released they pulled off a great stunt, and I wouldn't be surprised if they did that again, just to trump sony.

enough of arguements, 12th june is nearing ;) just wait and see guys

I don't think it will move much hardware, because this game was what sold lots of early buyers before it was delayed.

It will easily be a million seller, so I wouldn't call it niche.

Also, not sure why you are expecting a permanent rise in hardware from 1 game, a few weeks of a hardware rise is the most you can ask for from a game like this.

It will be a system seller in a lesser extent than GTA4 was, so don't expect sales to go over the roof, or you'll be disappointed.

Christ man do you have some sort of Vendetta against the game? It really is a great game coming from every source except Eurogamer and Edge. IGN gave it a 9.9 and I trust them more than any other site or magazine. So unless you're interested in the game and just worried about how it will turn out, shut up because you have no other reason to talk about the game other than to troll.

A few other people have touched on this but i think MGS IV won't move alot of hardware because of the current software environment on the PS3. Allow me to elaborate.

We've seen several high profile games touted as system sellers come and go on the PS3 with nary a whimper. This highlights a difference for Playstation between this generation and the previous 2. Traditionally games like GTA , MGS and other top of the line PS franchises have hit the market with a bang and to some extent or another moved hardware.

The point that some people miss is that regular people aren't buying the system for this one game even though they may have finally made their purchase because of that one game. If you have a high profile game released onto a system that already has, at least in public perception, an already solid library, it becomes the proverbial, "straw that broke the camels back". So while Playstation 3 is getting it's big releases i still think it is currently lacking the back catalogue, relative to previous generations, that makes people comfortable about finally splash out for that one game.

Quality doesnt necessarily decide sales, look at Enter The Matrix(bad game good sales) and Okami and Prince of Persia:Sands of Time(vice versa). And I personally have never heard of Edge, so it just seems that theyre trying to gain attention. They also seem kinda biased in my opinion based on the scores you posted. Regardless, Metal Gear is one of the most revered franchises of all time and sells an exceptional amount of copies each installment so I think it'll sell regardless on if its a system seller or not. If it doesnt sell itll still be great. And Sony never really relied on system sellers, theyve always had a wide variety of quality games, which have led to their success.