Well, imagine if, say, AC/DC had changed. The fans would be calling for their heads. When they did "For Those About To Rock" it was different enough that a lot of their fans complained. And, I knew several Def Leppard fans who were very disappointed with "Pyromania" because they felt they had moved in an even more pop direction that they had on "High & Dry". That doesn't even get close to what they would think later. A lot of longtime Van Halen fans cried foul when...well, i'm jumping too far ahead. BTW, I love that "hippie crap" from the late 60s. Great stuff. It came out when rock music was at its most creative and influential state. The Jefferson Airplane, Jimi Hendrix, Grand Funk Railroad, Traffic, Santana...all great stuff!