Almost all the games I own I ripped and bought lateron because it was just that good. I have a very select taste in gaming so I don't spend 450 gigs worth of downloads each month to download any and all games....
If I see something interesting and I have some bandwidth to waste I'll download it and play it. If it's good enough I'll buy it.
Only pirated game I own at the moment is The Day of the Tentacle. Brilliant game, unfortunately can't find the original because it's as old as I am almost
