Backup your iTunes purchases

Rex Hammock is shocked
that Apple recommends users back up their iTunes purchases. Since the iTunes Music Store has a transaction record of everything you have downloaded shouldn't the onus fall on Apple to make sure your data is safe? No, no it shouldn't.
Rex does offer up some ways of backing up your purchases, which is a good thing in my opinion.

iTunes purchases are just one type of data that litters your hard drive, and you should be conducting regular backups of your data as a standard operating procedure. There is even a popup after you download a track or album from iTunes that reminds you to back up your music (unless you check the box that says 'Don't show this again). Losing data is never fun, but I don't think Apple should be in charge of having a backup of my music.

What do you think? Am I
making sense here, or am I totally off my rocker (wouldn't be the first time).