Don't Amazon mp3s have limited number of downloads? It's a deal killer for me.
Dunno, I've never run into anything. Since you can move them to your cloud drive automatically I don't see it ever being an issue. In the beginning if you didn't use their downloader you couldn't redownload later on, but that's been ages.
I actually think their sale deals are much worse now, the daily album used to be 1.99, occasionally 2.99, now they're 3.99 or usually even 4.99, which I don't consider much of a deal. Of course it's easy to pick up digital coupons too, so you can snag a lot of music for free or close too if you watch your Amazon email receipts closely.