Agreed. I have my Sirius/XM preset to 50's, 60's, 70's, Classic Rewind, and Deep Tracks. I don't like too much on the 70's station (not really into disco) but they play an occasional song I like.
What can I say, I'm an old Rock-n-Roll Dinosaur.
I have mine preset on "fifties on five," but it seems as though more than half of what they play is from the sixties.