I'm envisioning a AP-enabled digital music platform that allows me to display a collection of recordings I've paid for. Not only would the artists get my money, but their records would be endorsed to my social network as music worth paying for, so at least worth a listen.
What I get out of it, as well as the warm fuzzies of giving financial support to artists I like, is the satisfaction of building and sharing a record collection. Without having to own physical media.