iTunes is a fine product however I have issue with the DRM that locks the files that you sell. The lock only allows you to play the music on apple related gear such as ipods, itouch, etc. They now have a small selection of non-DRM music however the selection is limited.

I like using iTunes because I can keep a library of all my CD's combined. I can go to the iTunes store from there, and purchase songs for a doller each without having to buy the whole CD. I think iTunes has revolutionized the way we collect our music, and has made it a lot cheaper and more affordable to the consumer.

I think itunes only gets away with being profitable because Apple marketed the iPod to the ends of the earth.  I think itunes, while it has almost all the songs you could possibly ask for, it also charges more than other sites.  Also, if you're like me and you're anti-iPod because it's way too expensive and you can get a Sansa for cheaper AND put pictures, movies, etc... on it without having to buy another contraption, you'll understand why it sucks that itunes only downloads mp4 formatted songs.  These songs you can't put on anything else other than an iPod AND I think it's stupid that you can't transfer iPod info from one computer to the next without losing EVERYTHING on your iPod.  Ehh- I just think other sites are better.