How long until people start getting bored of FPS games?

[tallgnome]

Wow I love how you use now that Halo is over you do forget plenty of other FPS that are on par or I consider easily better then halo.
CoD4 and TF2 for example. Of course I am a PC FPS :D don't get how u console players play with a controller.
Though I would say 3-5 years its still got a bit before its gone.