well, mostly I rely on gut feeling and reviews , so VC, Uncharted, Super Star Dust, LBP and so on always were games I'd buy and the demos didn't help or prevent that..
the games that I bought just because I really enjoyed the demo are few, namely: Minna no Golf 5, Civilization Revolution and Bladestorm
demos that turned me away from buying a game are even fewer.. right now that's only Resident Evil 5
but still, I really like demos and hope we will get demos for most games :)







