effect of piracy on price

I believe the corporations are too greedy what with DVDs STILL retailing at over £10 for a single DVD in some cases although there ARE some VERY tempting boxset and three for one offers going on as well the fact is, cinema ticket prices are the main thing encouraging people to piracy. Its mainly films that have just come out in the cinema that are affected by piracy for example, Hot Fuzz should be available for around £2 off your local pirates. People seem more content with paying for films that have just come out on DVD just as people are more likely to buy Hot Fuzz on pirate for example. So the cinema industry is hardest hit by piracy although I've only scratched the surface of the issue. (I am aware that cinemas are part of the film industry, I was merely pointing out that the film industry lose out to piracy when it comes to cinemas but more than claw back some revenue when the film comes out on DVD officially)

man! it's supposed to decrease price.. but.. I don't know what happens, that the price still the same, or also, the product increase its price!