You're probably well aware of this, but that's the fault of the label, rather than Apple or Amazon. The band is actually re-recording their entire catalog in order to sell music online and get a fair cut. http://www.rollingstone.com/music/news/def-leppard-re-record...
Interesting/depressing. Good insight into who really steals from artists.
Yes, this conversation is about the RIAA, not individual bands.