Why are some movies not available in the cloud after purchase?
I nearly purchased and downloaded James Cameron's Aliens, when I noticed below the purchase buttons the note that This movie will not be available from iTunes in the Cloud. Why? Isn't that point of a digital copy? I could just as easily buy a used DVD cheaper and rip it. The film is still for sale in the iTunes store, why could I not get it in the Cloud? Does this also mean I can't download it again if it's deleted?
MacBook Air, Mac OS X (10.7.3)