You missed be largest category for pirating: people who want to watch new releases before they are available on Netflix, but cannot afford $20 to see it in theaters, or $15-20 to buy it digitally before it becomes available on Netflix. The window before a movie is in theaters until it becomes available on Netflix can be huge, and many people don't want to wait that long. I usually prefer watching movies in theaters (I like the experience) and if I miss it in theaters I will gladly buy it through iTunes, and even then I usually have to wait 3+ months before a movie I missed in theaters is available for purchase. I don't pirate because I wouldn't even know where to start but I can say I've been tempted to look into it just so I can watch a movie today rather than 3 months from now (and I would gladly buy it even after pirating it).