The tracks have to be cheap, otherwise even clueless people will just get them off of a P2P.
I refuse to pay per track for an album. If I buy an album on-line its from ebay, if I want something else, my local music shop can order it in.
Also, what about the cool booklet that comes with most? And sometimes a poster. What will I have to do then? Pay for the PDF and then pay to get it printed?
DRM is bad, getting an album per track is bad.
DRM, just say NO.