Greg, Frank Zappa once did a great interview on this very subject and I found it on YouTube-
It's about the change in the music industry, but basically he says that all the hippies and peace-lovin free-thinking folk back in the 60s could initially come in and do their thing since all the men in suits didn't understand it - and because it made them money, they allowed anything to happen (same thing happened in the tv industry in the UK with comedy such as The Goodies and Monty Python). Then later on, the industry changed, and all the old ex-hippies are now running the studios - with pre-defined ideas of what constututes great music. And of course you get a new generation coming along with new ideas but they are unable to get it out there since it won't fit with the formats and hence, these old hippies actually become more fascist and stand in the way of the development of new music to come forward!
I thought it was quite interesting, considering some of the dire banal music that came out of the 80s, compared to the oddball music of the 60s that somehow snuck through!
FZ was quite a wise dude, he tells it like it is. Shame he's no longer around.