because it's theraputic, in a way. You pretty much nailed it on point number 6. The man is the eptimy of the self absorbed, self involved narcissist, interested only in the shallow - I mean he's does hair for a living- it's not like he's Gandhi , but he sures thinks of himself that way.
And, is it me or does his salon give every woman who walks through that door the exact same hair style? It's like supercuts for the wealthy.