I once considered myself one of the 'hardcore elite', exclusively playing pc games and not owning a console. But I decided to get a 360 to sit next to my pc, and it's since become the gaming arm of my whole setup.
The problem has come as I'm due an upgrade (I'm one of many still with a 6800GT), but there's nothing worth upgrading for. Everything I could want is on the 360. Sure, aiming in COD4 is balls, but the immersion is ramped up with analogue walking. Seriously, analogue walking: it's ace
I still want starcraft 2, and... Well actually that's it. That's the only exclusive pc game I want. I simply can't remember a time when I haven't been forced to upgrade, and that day has come. It's a sad day. I'll still use my comp for the odd game, but the 360 is a tour de force experience, and one that has changed my view of consoles entirely.