Being in nyc, I actually walked into their "shop" one day about six months ago. It's more like a small suite of offices. They certainly do not cater to a walk in trade. I thought I could go there and look at some pieces, save on shipping, and get some good prices for cash. Nope.
I buy junk silver and pre 33 US Gold. They did not even seem interested in selling it to me. It took them a while to even admit they had some "laying around in the back somewhere". Then it took a longer while to figure out how much they wanted for it. They were much higher than my other small lcs. They were pushing "investment grade" one ounce silver and gold. They seemed interested in big customers. I think they get rid of their small stuff online to retail customers. I sensed their real business is in buying and selling to wholesale customers.
I don't mean this as an indictment of them. They actually do have a physical location. If they have what you want online for the right price I would buy from them.