For me its more of a value thing.
When I first started playing games and using apps on the computer, I would rarely need patches as they would work without any bugs (well OK mostly games
) but the last few years I have been disappointed. Even then I continued to purchase these games because I could return them if they simply were not playable or too buggy. Lately however a new policy (at least up here) seems to have spread that games can no longer be returned, simply exchanged for the same title. Instead I 'try' the games out and once it is playable I go out and purchase it (if it becomes playable before the developers abandon it). I have a few developers I am loyal to and generally buy their games outright but they are even giving in to the methods of the other companies.
As for movies and music, my gripe has more to do with them catching up with technology with their releases. I'm not a big movie-goer and generally listen to music on the radio so I'm not really affected. Most movies I do watch are out for rental or I purchase them if they are strongly recommended. I think their market share is declining (their reason for going against piracy) is mainly because they are not motivated by market forces and instead prefer to place the blame on technology. If they could find a new, more modern method of rolling out new releases I think they would find their market share rebound.
For example, who wants to go to the theater to watch a movie when they could stay at home, avoid the extra costs, parking/bussing, not able to pause the movie, sometimes having to put up with noisy people, when they could just stay at home and rent it or buy it off the internet--legally. Mind you the theaters would hurt, as did drive-ins, but that is part of business. I don't see too many 8 track vendors out there anymore either, let alone LP or cassette.
I would even question how many of those pirating movies/music would have actually paid the price in the first place if the internet wasn't available.