well I would like to add one thing: usually those who film the movie and post it over the torent do a favour to those in poor countrys of the world. 3-rd world countrys that will not even project that movie there. Think Africa, think Russia, Azerbaigian,China, people who will never pay that huge 8- 9$ and will never afford to purchase a legal copy. People who can afford to pay the tyket usually do, and end up buying the dvd if they consider that movice worthy. Before 1989 in communist countrys all the music, movies from the'80,were banned, there for people smuggled them and multiply them, and they were loaned in citties. Maybe looking to that from today's point of view it isn't legal, but surelly was a good hting to offer to those poor people who lived in terror.
So , I would say that usually who is willing to pay for it , will pay for it if they consider the movie was good. Today's problem is that most of the movies made today, in the US especially, are crappy. Personally I say that if you want a good movie, get one from the 40- 50- 60 even ...You will see real acting there. In comedy, for instance the golden era was in the '30..and even earlyer...