Because of the precident set by the last generation. The 360 did not have a built in userbase, the PS3 Does. Neither are selling, the 360 is selling FAR better than it should be, and the PS3 is selling FAR worse than anticipated.
XBOX LIVE Gamertag: QuantumTarntno
Crackdown - Enchanted Arms - Oblivion - Samurai Warriors 2 - GRAW - GRAW2 -Lost Planet - Guitar Hero 2 - Star Trek Legacy - Double Agent - WWE 2007
Wii 4237-4425-6442-7626
Mario Party 8 - Rayman Raving Rabbids - Excite Truck - Zelda: Twilight Princess - Godfather - Wii Play