Comment by delucain

I think you've hit it right on this. I'd also add that the cost variations probably do play a big factor into what piracy does exist. I'm a lot more likely to take a shot in the dark on a $7 indie game or even a $30 indie "blockbuster" than I am a $60 AAA game (where half the cost is marketing anyway). Piracy probably just appeals more at the higher price points.