Yeah, I got that CD. The airshots of him from the 60s are sad, but it's still funny as hell when he plays some band's lame B-side and says "better luck next time, boys". Like, the business has passed him by, he knows it's passed him by, but he just don't give a fuck, because he knows more about the real business than the business knows about itself. Can't bullshit a bullshitter, and all that.
On the plus side, so much of the "wildness" in rock-and-roll is either staged or exaggerated or managed/controlled that when the real real thing comes along, it's cause for perspective.