Vanilla is a product of Lussumo:
Documentation and Support.
I really feel like you can only justify this if you don't consider what the musicians/fans are doing work, but rather pleasure. Which is fine to a degree, but then why would ever pay anyone who goes up on a stage and has a good time?
Dolby is VERY well off financially (developing polyphonic ringtone technology
What I keep coming back to as I think about this is that I feel like, in this case, the fandom is being exploited.