That's fairly simple. I have never bought a song on iTunes.
Not that I don't believe in electronic music, I do. I ripped my entire CD collection to MP3. Over 500 albums.
It's the DRM I don't like. With music, you have the option of getting a CD, where you can rip it yourself and use the music as you see fit for personal use. I place all my MP3s on a central server in the house so they can be played on any computer, Apple TV, or MP3 player.
I have bought TV shows and movies in iTunes. Why? Because for new TV shows, it's only real option to legally watch current shows before the DVDs release. It's the optimal solution.
The new Amazon MP3 store looks promising. I tried to buy a Daft Punks album, but the downloader didn't download. They took my nine bucks but I don't have the files. I haven't heard from Amazon customer service yet.
If the question is what music am I listening to, then here's the kinda stuff I've been listening too.
Making Plans for Vinyl (a mashup you can find at Go Home Productions)
Teenage Kicks by The Undertones (John Peel was right)
New Slang by The Shins (Natalie Portman was right)
Rilo Kiley - Under the Blacklight (Their new album rocks)
Beastie Boys - The Mix Up ( Michele and I saw them play their instrumental songs live last month)