He's got enough money - if he's not happy doing stand-up, then he shouldn't. He could get work doing commercials, master of ceremonies, etc., to keep busy.

He probably doesn't have to work at all, with the royalties from the Seinfeld show reruns and DVD's. Seinfeld is on, somewhere in the world, 24 hours a day.

Richards could open his own club or restaurant, perhaps calling it "Kramer's", or do whatever the hell he wants.