Should Pandora use a subscription based business model?

On TWist Episode 16 Jason talked about an idea to have fans of an artist pay a subscription fee to receive news and bonus mp3s from the artist. I am a big fan of Pandora.com. Jason's idea inspired me to start thinking about the possibilities for Pandora and a subscription model. On Pandora, a user creates a custom "radio station" that the user seeds with artists and songs and then trains by giving selections a thumbs up or a thumbs down. In addition, users are offered the ability to bookmark a song or even purchase a song.