Crazzy, about your sig. Gran Turismo sold 564K in Japan on first week, out of a base of 4.3M. Your sig says wrong. It ended it's life at 1.9M, but first after several years.
FFX sold 1.9M out of a 5.1M base. It ended it's life at 3.0M, and it didn't reach that before after several years.
What you are doing, is kind of like saying "Super Mario 64: 11 Million sales out of a 300K base"
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS