I realized recently that I really have no interest in playing a typical FPS.  Part of this originates in my desire to better prioritize my time on activities I enjoy the most. In terms of gaming that usually consists of action-adventure games like Uncharted, Legend of Zelda and the like.  While I have enjoyed playing FPS' in the past I find that they are all so derivative now that any enjoyment is tempered by boredom.  Only shooters like Bioshock which offer a much broader experience hold any real interest for me. I still enjoy the occasional multiplayer FPS, TF2 in particular, but those sessions are rare.