Why all the noise about gaming? (Score 2, Interesting)

Every article on the Mac and OS X makes a big deal about the lack of games for the platform. While I agree, what I don't understand is why use your computer for games when there is PS2, XBox and GameCube. These platforms are cheap and there are tons of games for them and the controllers are great. If I want to play a game, I fire up my Xbox or GameCube. Would never even consider using the computer.