I don't steal music.
Of course, I'm going more by the 1976 Copyright Act (U.S.) than any of the subsequent attempts to subvert and demolish copyright law. (In the 1976 law, copying something like a newspaper article or a song and mailing it to a few people was considered fair use).
I have ripped all my CDs onto my Cube - which is my stereo system - so that I can play CDs in the car, load them to friends, or play an album without trying to find it. I email MP3s to friends, and get MP3s from them, every so often, exactly the way we used to trade mix tapes. The radio tends to suck, and I haven't bothered with MTV for years now, so this is the primary way I'm introduced to new songs. If I like the artist, I buy the album - unless I find out that it won't play in my Cube, or has degraded sound, or can't be ripped, because of some hare-brained copy protection scheme.
My band also <a href="
http://www.themayflies.com/music/" target="_blank">offers MP3s for download</a>, because we don't see what's so unreasonable about getting to hear something before you buy it, and because Internet distribution looks great to little independents like us who are just getting started. The server tells us how many people downloaded what when, and from where. Apparently there are people in Belgium who like us.

This opens doors that we would never have under the traditional publication and distribution streams. Not to mention that we don't have to run on the studio treadmill and give the rights to our songs away.
I understand why the music industry's scared of file-sharing, but there are so many slime in the music industry - at all levels - that I don't care. Let them tremble.