All right, here's a topic for discussion to wake up the forum snooze. I was thinking that one of the great aspects of Jack's character is his low-rent vanity (e.g., the $12 Hong Kong suit - or Rochester making a star for Jack's dressing room door out of a rotten orange peel thrown at Jack while on stage). I am trying to think of another performer who pulled off 'vanity' so well - and it strikes me that one of the constant comments about the real-life Jack Benny is what a humble, no-frills kind of guy he was. He got excited about a great cup of coffee or a fluffy towel - not mansions and sportscars. So, my observation is that Jack could play 'vain' so well - exactly because he was a non-egomaniac in a business notorious for vanity and excess.
Also, part of what makes the Jack Benny brand of vanity so funny is that you never quite believe it, it's usually so goofy or surreal.
Can anyone else think of comedians who really mined 'vanity' the way Jack did?