I mean, I have the Mac client, and by all means I'm running it on the lowest settings to get it to sit around 20-30 FPS, but running the application without purchasing a copy of Windows makes my life easier. $60 for the game, expansion, and 30 days of game time seems a much wiser decision than spending $100 - $150 on Windows.

When I'm not out and about, I play the game on my PC instead.