I read the same books over and over too, at least I used to.But with music, for me nothing beats the experience of hearing a really great song for the first time--much preferably live--and knowing that one's a keeper. I'm willing to sit through a fair amount of "okay" material for that.
A set of all dead familiar material from a performer is o.k. if it's really good material, I guess, but it's just plain lazy.
I like a mix, because in every audience there are people like Marion and people like me. And we all paid to get in.
Bill C