Depends on what your tastes are. If you have a soft spot for SkiFree or bland, cookie-cutter shooters then maybe gaming on GNU/Linux is enough for you. But most of the games available for GNU/Linux are candy, games for games sake, and don't have much intellectual value. Wine helps a bit but a lot of things still break especially with modern titles.

My solution is running Windows 7 in KVM with GPU passthrough to an external monitor. Best of both worlds.