In a world where copying music is essentially free (not 0.99$ as you say), you are free to sell copies for whatever amount. Good luck with that. Perhaps by adding side value it'll work.

Video games are a good example of something that works: the marginal cost, and actual copy-proof value of many games are updates and content. See World of Warcraft. Pay to play.

At least you are paying for something that actually costs money (again: a download is essentially free to the seller).