As music sales begin to rise with iTunes, some artists have begun to dislike the online retailer, which allows people to purchase music track by track. The argument seems to be that these artists would rather sell their music in album only format, either for artistic or monetary means. Says Kid Rock to the Wall Street Journal:

In so many ways it's turned our business back into a singles business.

Ars Technica has a rundown of this trend amongst artists, noting that AC/DC has never put their music on iTunes, and both Estelle and Jay-Z eschewed the music selling service in favor of selling the album in full only.