Ultimately I would say piracy usually breaks down to people wanting things for free. If we stop looking in our inside circles (Enthusiasts, developers, etc—the 'enlightened') and then look outside at the mythical average man, or, the masses.
Recently someone in my Facebook feed made a comment about loving BitTorrent (Hey, at least he and others are moving on from Limewire) because he could get movies for free. This comment had a few 'lol awsome' words in it. Also, think of how people latch onto "GET RICH QUICK" schemes, late-night ads promising amazing abs at minimal work, etc.
Hell, consider myself too. Back in high school I would pirate a lot of games and finish them. Why? Because I wanted them and didn't always have the money. Note: Throughout my life I've also purchased a ton of games starting back with Hocus Pocus, Raptor and Warcraft. ;) I've long since stopped and now if I want to play a videogame I will either buy it or go without. Take Portal 2 for example, I've been more carefully budgeting my money and am yet to buy it. I haven't died, yet!