Once you get there you are officially in the club of Linux gaming. The problem of course is a limited amount of games and in particular AAA titles. Hopes remain high amongst the gaming community that with the push to OpenGL on PS4 coupled with the SteamOS release more developers will create Linux-compatible games. That is definitely a long term goal though so don't install SteamOS today under the belief you can migrate here completely."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips