I never felt Windows was bad enough to cut out for gaming, until I tried Windows 8. I use Linux for a lot of things, even bought all the Loki games when they were around, but never had too much of an issue with Windows Gaming to say I would drop it if Linux caught up.
I changed my mind. Windows 8 has been horrid on the desktop for gaming. I've had several crashes due to DirectX driver incompatibility.. Most of them due to having the XBOX 360 Controller plugged in. I have older hardware no longer supported - and no word if it will be. Metro isn't really that intuitive for launching games (although it is for buying them I guess). My AMD Radeon card has been overheating lately because their drivers aren't up to snuff on Windows 8, go figure... It's been overclocking itself. Which I know isn't all Microsoft's fault - but it does seem like PC Gaming is an afterthought over tablet gaming with the newest release. Seriously, bejeweled type games are at the forefront of the metro store.
Gabe got a lot of flack for looking at linux as a platform that steam will run on, but I'm all for it. A game distributor gets all access to the OS that they will be delivering on? I'd be hard pressed to think of real reasons that game producers won't want to jump at it. Definitely like the idea of a SteamBox too... I can play the same game on my laptop, desktop and console? and have all my save games with me to jump right in at the same point I left off on? Sounds damn good to me.
Steam also gets some flack for pricing - but I always wait for the deals. Trine 2 cost me $4, a game I would've never tried unless it was on the Linux Beta, and loving it... so is my son.
I'm not overjoyed.. maybe 8 years ago I would've been... When enlightment kicked Windows XP out of the water... When Linux Desktop was promising some hope... But, I would definitely replace Windows with Linux as my desktop if gaming went that way... Gaming sucks on tablets for me... and tablet OS's suck for gaming.. So maybe it is finally the year of the linux desktop.