I wish there was an option in iTunes to unbuy songs that you don’t like. Perhaps you can even pay more later for songs you like a lot. For example I downloaded Pop Lock & Drop it by DJ Huey, because it was in the Billboard Top 100 and I was misled into thinking it would be a catchy song (NOTE: I know a lot of the Top 100 songs are absolute junk, like Mims, but at least they have a beat and something to sing to). Maybe once you get your utility from a song you can sell it to someone else.
Seriously though, if the music labels are gonna be really concerned about DRM, and use examples about how you wouldn’t steal bread from a bakery but you’ll steal a song from an artist, you should get resell rights on the music you buy. The problem would be verifying the song is gone from your computer once you’ve sold it. You can’t sell something to someone and keep it, or people would demand it for free, which they do. I get the feeling though that if the record labels could shut down every illegal downloading site, they still wouldn’t allow resell rights.