Meh. Thork is right for the most part. If you play modern games, windows is what you want.
Linux, as Steve has just demonstrated, requires knowlege of very specific coding, scripting, and variables to fine tune. While its easy enough to get this info online, it's still more than the average user wants to know about their OS.
Heck, I know more about Linux and I don't have it installed on my pc, just a VM.