I don't think the artists would be happy to miss the opportunity to be on iTunes just because Jobs was slow, involved in marketing spin, and specifically obnoxi

I don't think the artists would be happy to miss the opportunity to be on iTunes just because Jobs was slow, involved in marketing spin, and specifically obnoxious to this one guy. People and companies (yes, major ones) behave far worse all the time. Boycotts can make sense, but relatively rarely compared to the number of times such bad behavior occurs.