Why can't MGS, FF, GT sell as much on PS3 as they did on PS2??

[I Perdict]

mrstickball said:
.......But I wonder if good GT5p sales will translate to higher GT5 sales?

Maybe I'm the only one that thinks that the weaker PS3 userbase will force GT5 to not sell as well as GT5p would have one believe..

 

 If we take out NA's sales since GT4P was never released there GT5P has only sold about 300k more than GT4P

1.3 GT4P and 1.6 GT5P

GT4 sold 10+mil