For those that pay to DL like on iTunes or Amazon why not just buy the actual CD and rip whatever you want into your mp3 player? Isn't that the most logical thing. You get a physical copy and can create as many mp3s as you'd like.
If I like an album I'll generally buy it on CD. I like being able to rip it at whatever quality I like, plus the idea of paying for digital files seems weird, unless thats the only option. If I want to sell the CD in a year then I can. You buy MP3s, and you have nothing.