To give a short answer...
Blue: Final Fantasy 1,2,3,4,5,6,7,... 12 boosted hardware sales for exactly one (1) week. So the PS3 will probably sell 50k in the week Final Fantasy launches.
But that´s all. Look at the sales charts, 4 weeks after a Final Fantasy launched it doesn´t sell anymore. It´s for the hardcore crowd, the crowd which already owns a PS3. They won´t buy a second PS3 just for this game.
After more than one year of bad sales Final Fantasy will help the PS3 to stay alive. Stay alive, nothing more.
Look at the West: Halo is as big in the US as Final Fantasy is in Japan. Still, it never boosted XBox sales for more than a couple of weeks. Do you really think Final Fantasy and Metal Gear alone will help the PS3 to win this gen?







