"By the way, there is a nasty rumor that you get a $500 commission on each pair of M22s you sell. I don't believe it, though."

Hahaha, that's pretty funny. M22s only cost $400. A $500 commission would put Axiom in the hole $100 - not counting overhead, materials, etc...
I think if you allow someone over to your house to audition your Axioms, and they end up buying some, you get $20. Big deal - the auditioner will likely consume more than $20 worth of your beer.