I'm kind of sick of all these discussions. Sure, everyone who pirates has some at-least-quasi-principaled (or even, actually principaled) decision or rationale for why they pirate. Everyone seems to have an opinion on content quality, the efficacy of current copyright laws, and most people come to similar conclusions about the companies that control content and the groups of lawyers they employ to 'protect' those assets.
But as I said, I'm kind of sick of these discussions avoiding one central point: Why do you pirate? Because you don't want to pay for it. It's that simple.