Have you ever refused to play a game just because its on an "enemy" system?

[Parokki]

Sorta. I'm trying not to get too hyped over PS3 exclusives, since I know I won't be owning the console in a looong time. So far only MGS4 and LBP are causing high levels of want.

I'm not fanatical enough to shun entire consoles of course. Just being pragmatic. =P