Munkeh111 on 18 February 2009
@ seece, people did not buy Gran Turismo 4, because they already had Gran Turismo 3. If you look at the sales across the PS1 era as well, I believe 1 sold better than 2, so we can expect 5 to be bigger than 4 even on a far smaller userbase
About market saturation, the percentage of a user base buying a certain game will nearly always decrease as the demographics of the console spread out, and so their interest in games will be wider
