Look, imo there are 5 major things being pirated and they all have reasons why they're copied - I think that's music, movies, games, software and tv series.
I have no problem pirating anything really, but my opinions on every one does differ.
Music - I mainly listen to a few bands and would really like to have hard copies of their albums, to have them and to support the artists. However, those are pretty much impossible to find here. So I download them. The 'mainstream music', imo cheap music made by companies and not so much by artists, I would never even consider buying, but I do not think piracy is mainly a bad thing. Artists these days make most of their money off of live shows and if the piracy of their music helps them be more famous, it's eventually in their advantage as well.
Moves - As with mainstream music, I think the price that has to be paid is way too high for what you get. Here, a visit to the cinema costs around €10 (without overpriced food/drinks), later the dvd costs about €20. imo, one movie isn't worth that amount of money. When the price of the dvd drops, I might consider buying it.
TV-series - I can be short on this one: the main problem is that most of the world only gets to see them a long time after they were aired in the US, if they are even aired. People want to follow them as soon as possible.
Software - Most software is WAY too expensive for individuals to buy, I don't want to spend €1000 on some adobe stuff. Companies and such buy them anyway, I don't think individuals are the main target for software developers.
Games - I have respect for game developers, so I only download games if they're pretty much unobtainable elsewhere or if I only want to try it out. I also usually don't buy games at the release (skyrim being the exception

), a year later, most are very reasonably priced.
tl;dr - I think piracy is a good thing for everyone, people can obtain stuff that would otherwise be inaccessible, and authors of work get more noticed, aiding them in other acivities.
I do not, however think, people should just go about and download everything because it's free. If you can buy it and really want it, why not pay for it and support the authors.
-all just my opinion btw
