Please don't insult Alan King (although Klein does resemble him). Alan King was a genius.
I didn't mean to insult Alan King, who I in fact referred to in an e mail to an old girlfriend from High School as a "prophet" (because when I finally bought my first house 11 years ago I too found myself obsessed with crabgrass).
I only meant to suggest that one can't hold onto one's "edge" in comedy forever. Look at George Carlin, who seems to have morphed into something barely even human, in the quest to go further and further.