Personally, I'm offended by the popularity of "Classic Rock" and the fact that marketing channels have broken down to the point where there's no connection between great music being made today and many listeners.

I grew up listening to "Classic Rock" in the 1980s, and it took years for me to realize that this had deprived me of the authentic music of my youth... It was the music of somebody else's youth, which makes it all the more dangerous and seductive. It appeals to geezers who were listening to it when it was new, and it still appeals to new generations of young people.

Classic rock dominates the airwaves in my locale; other than NPR, I find everything else unlistenable [there was ~one~ good urban music station a long time ago, but it's owned by Clear Channel and quit playing anything good rather abruptly after 9/11]

The situation has many dimensions (for instance, any credible 'new' rock has to make a rapprochement with punk) but the thing I hate the most is hearing the same doobie brothers song on the radio driving into work and driving home. I'll listen to NPR or a Shonen Knife or Red Red Groovy disc, but I feel bad for all the boomers who can't escape the gravity of 1968.