What bands or artists out there do many people love that you just never understood or got the fascination with that others do?

For me, the bands I never got were:

KISS
Pink Floyd
The Grateful Dead

This is not meant as a dig to those who like these bands. I just never saw how people fell in such love with them. I do like a few songs from each of these artists but not enough to make me say "WOW THESE GUYS FRIGGEN ROCK!".

To be honest KISS just make me sick... Gene Simmons is such an ego maniac and IMHO their music isn't all that good. Having said that, I do respect the fact they have stayed together for so long and have millions of fans. I'm just not one of them.

I do however love Ace Frehley's solo albums (Frehley's Comet, Second Sighting, Trouble Walkin', and the latest Anomaly).