Why Do PS3 owners not buy exclusives

[ZOE-2ndrunner]

Metal gear solid lifetime sales (worldwide) PS1 and PS2

MGS1 - 6 mil - lifetime
MGS2 - 7mil - lifetime
MGS3 - 4 mil - lifetime

MGS4 - 4.23 in a little over a year, and still selling 15,000-20,000 a week. lol The game is doing great. PS3 is the right system for all metal gear games.