Well... when Metal gear solid 4 was released there was about 12 million playstation 3's worldwide. MGS4 sold 1.7 mil units its first week, in its first month it sold about 3 million copies. Considering there were only 12 mil PS3s worldwide thats actually very good bro. In june 08 xbox 360 worlwide numbers were 19 mill so if the game would have came out on the 360 it would have sold more because...its simple there are more 360 owners than ps3 ,NOT BECAUSE PS3 OWNERS DONT BUY EXCLUSIVES LOL. And as for Killzone 2 not all PS3 owner are FPS fanboys, So I knew it wasnt gona sell 4-6 million copies, even though its still selling pretty good. (IF PS3 CAME OUT IN 2005 AND XBOX 360 CAME OUT IN 2006, YOUR TITLE WOULD HAVE BEEN "WHY DO XBOX360 OWNERS NOT BUY ANY EXCLUSIVES")
So there you go, thats why a system with 32.26 mill users sells more games than one with 24.79.







