There's a one-man shop outside of Boston that I've visited several times:
http://www.slcycle.com/
He's got a QBP account and carries several lines of new bikes, consistently selling below the price demanded by shops closer to the city. He told me that they've tried to shut him down (threatening the suppliers that they'll cancel their orders if they supply this guy), but several years later he's still around. He consistently runs CL ads, and I've been there when he's bought used bikes, which he also sells and parts out. He's offered to let me order anything I want from the QPB catalog with a 10% markup (which I haven't done--I have enough bike crap!). Formerly, the guy worked as an accountant, and he told me that for a while, at least, he was sleeping in his very crowded store. It's not a life style I would choose, but he seems to be making a go of it.
Neal