I pirate a lot of stuff, but I buy a lot too.
In the end, in my mind it goes as this: I could spend 150 bucks a month on entertainment, and pirate an additional 150, or I could spend 150 bucks and pirate nothing.
In the end, the record labels, movie studios, game companies would get the same, except I would only get half the entertainment, and wouldn't ever experience the other 50%. Do I have the right to experience those 50% I haven't paid for? Probably not, but if I didn't, I would never spend any money on future stuff from the same directors/musicians/editors.
That means that if I hadn't pirated that Half-Life game when it came out, I would never have bought the second one, and would probably have spent that money on another game by a company that has 500% more funds for advertising.
That means be locked in endless franchises like Call of Duty, Mario, Zelda, and Super Hero movies, because they are more of a "sure thing", and never spend any money on more obscure, but greater things.
This is even more accentuated in music, where you would probably only know the bands that play at local radio stations or that are very popular on media and youtube, and never discover more experimental and unknown stuff, like one of my favorite bands, Genghis Tron.