Its not specific to any platform, the demographic is changing, the best selling games on PC are shooters too. The online connectivity is everywhere, a good internet is a standard in any household. Naturally, shooters are a whole lot easier to pick up and play in a multiplayer environment, its a genre that's popular with any teen, any competitive players, any dude bros. You just can't beat fps as a genre, the developers are jumping into this wagon too.
Intel core i7 930 OC @ 4.0 ghz
XFX Double dissipation Radeon HD 7950 356 bit 3gb GDDR5 OC @ 1150 MHz core + 1575 x 4 memory
Triple channel DDR 3 12gb RAM 1600 MHz