Also, once you sell the publishing rights, you no longer have control of your material. Depending on how your contract is written, you may have to pay to play your music. Look at the mess Fogarty was left with after bad contracts and Creedence Clearwater Revival not being able to play their songs. I'm surprised that both Springsteen and Dylan did, as they have always been reluctant to let people use their songs for campaigns, advertising, and other low brow embarkments. And, like Joe said. Stones money is huge, as is Dylan. Think of how many times on how many radio stations around the world still play their music. That's a crap load more money than they'll ever get from Spotify or Pandora.