I've been primarily a PC gamer since 03 now, and will always continue to do so. I find it easy to just buy my games on there through networks like steam and just hooking up a gamepad/controller if I really don't want to use a mouse + keyboard.
It also isn't THAT costly to upgrade a PC. Yes the initial price for a gaming PC can be mind blowing, but the upgrades can equal out to the cost of a console. Overall I'll just always just the game selection a lot more, and of course, MMORPG's!