If by rock you mean playing the tonic of guitar written songs often blues based or other familiar pop progressions when only the words/arrangement are actually original (marginally)...never have been able to stand it.
If by rock you mean music with a straight rock beat but can be anything musically and uses some improvisation, anytime!
That's why there are rocks bands that bore me and rock bands that keep my interest.
Bands like Gang of 4 or Tortoise hold my interest over a span of many years. Bands like ZZTop or Black Crows where there is nothing original except the clothing, hair and personality, none of which can hold my interest over a few minutes, it's a waste of my time.
+1 I'll have to add it's something of a constant battle - I find it more difficult to get my mates to agree to stretch things a bit (Television, 13th Floor Elevators, etc.) as they always bring up the "if it's not popular then we won't get gigs" argument. There may be some truth in what they say but I still don't like it - it's not like we're in it for the money anyway. So, I'm looking for some jazz jams in the area to expand my horizons and, perhaps, to hook up with some folks to crank out something new.