Where's the best place for used audio gear in NYC?

I don't know if they sell used but would definitely steer clear of In Living Stereo. Absolutely the worst experience at a dealer I've ever had. I was ready to drop $11k on gear I had researched prior to going and I left not only with no purchase but vowing never to set foot in the place again (and I haven't, even though I live 3 blocks away.)

What happened? Too many annoyances to list. I think it was the owner I was dealing with. He was rude and disinterested. Even though I made an appointment he kept me waiting repeatedly by walking out of the room to chat with his workers. The Shindo gear I was listening to was shrill (at least in his poorly designed room) and he blamed it on the cds I brought in (he even insulted the music) and then blamed it on the fact that it was a hot day in nyc and lots of people were using their air conditioning. He bashed Don Gerber of Fi and Gorden Rankin of Wavelength. He had no intelligible answers to my questions.