For whatever reason (I smell lawyers), DRM-free purchases (“iTunes Plus”, cheesy har-har) are not enabled by default in iTunes 7.2. In fact, they’re positively buried:
hat tip: SteveX Compiled
addendum: Looks like they placed iTunes Plus links more prominently in the store interface, so you no longer have to dig for them. Thanks, Apple.
“I distrust a close-mouthed man. He generally picks the wrong time to talk
and says the wrong things. Talking’s something you can’t do judiciously,
unless you keep in practice. Now, sir, we’ll talk if you like. I’ll tell
you right out, I’m a man who likes talking to a man who likes to talk.”
— Sidney Greenstreet, _The Maltese Falcon_