The majority of the media I bought on iTunes from about 2006 onwards is gone. Some of the music is still there, but every music video, show, and movie is gone. If I hadn't had the common sense in high school to back it all up to my hard drive, it would be gone forever. that was a tough wake up call that I don't own any media I "buy" from Apple/Amazon/etc. I'm renting it until they're done hosting it.
Yo ho yo ho, back to my old life I go.