PC gaming sucks. No, seriously, it's complete dogshit. Every time - literally every time - I've tried installing big-name titles on the machine I had when they came out, I've had massive headaches with drivers, misleading system requirements, or just random reboots in the middle of a level (looking at you, Halo). With my 360, Wii, DS, or even my old N64, I insert the game, power up the console, turn on the TV, and I can play. It Just Works(tm).
I used Windows exclusively from 3.1 to Vista, and I still keep a Windows 7 partition on my laptop, on the off chance there is literally no way to do some college-required thing in Linux, but the only reasons I've booted it up, ever, were to download and burn a Debian iso, and to periodically let Windows Update spend an hour patching. GNOME 3 with a good selection of graphical and console-mode applications is miles ahead of Windows 7 for me, personally. I don't need Linux to take over the world, or even attract a lot of proprietary software developers. Just give me fully functional hardware, and I'm happy.