Piracy is a form of counterfeiting, not stealing.
"and to top all that I also buy a DVD? How about now, is it still the theft?"
Because most people who pirate don't do this.
"My point is: there is a real difference between an illegal copy and a theft, not just some semantics."
Well, it still has destroyed these industries. Over time, with more and more piracy available, people are going to feel that they should be getting this content for free. The market value will go down, and it will become increasingly difficult to make any money at all. With no money in an industry, that industry will most likely die.
The value of most digital goods are in the minds of the people that want to purchase it (similar to currency or a service). When this is devalued because of piracy, I don't know if I would necessarily call it 'theft', but it's still in the same family. The owners are losing money because of your actions. It's worse than theft because it's not like you can just buy another one. It devalues the entire product, forever.
"If I torrent something "getting for free" is never the reason to do that. The reasons are either availability or convenience. If there was a way to buy movies in digital format (I cannot even buy music on iTunes in my country, only apps) I'd spend a lot more money on them. App Store and Mac App store are the good indicator of that."
Right. Just like music? I've heard all these excuses before. 10 years ago, when Napster came out, the people that were justifying piracy came up with all these excuses too: They wanted to be able to "try before buying", cheap music, and to put a stop to "artists getting screwed".
Now, there are services like last.fm and pandora, music is cheap (99c or less is pretty damn cheap for a song), and artists don't need to be on a label to succeed (social networking FTW). Has piracy stopped? No, there are a new set of excuses and piracy is worse than ever.
I don't think it will ever stop. There will always be a new set of excuses to legitimize selfishness.
