Everything happens in cycles:
Discussions on this board, trends in music, everything.

I've learned to sit back and listen to the music itself. I'm mostly interested in "The Song." You don't have to be a terribly proficient musician to write one hell of a song and play it well. You have to be creative and solid. While I appreciate really technical stuff, I'd rather hear a good song. This is why Dream Theater and Vai bore me yet I listen to Morphine, Primus, Symphony X, and Buckethead.

70s: I think: "P Funk, Black Sabbath"
80s: Outside of SRV, Possessed, and a few other exceptions, the 80s were a waste of time.
90s: Alice in Chains, Soundgarden, Primus, Morphine, Clutch, Faith No More, Mr Bungle...
00s: Well, Mike Patton, and Clutch are still kicking around...