I dread the day when iTunes stops letting you buy DRM-free music. I don't know anywhere else I can do that easily (and is the only Apple service I use).
Nowadays I tend to use bandcamp.com over iTunes for purchased music. It tends to only have smaller artists on there but they also sell flac/wav, which I like better than buying compressed music (I listen to things compressed but if I'm buying it I want it future-proof).
