If you've ever been to 47th Street Photo in Manhattan, it's a very unique place -- always packed. On my very first visit (many, many years ago). I patiently waited in one of the customer lines to get up to the counter, and when I finally got up there I said
"I've got a question" and was immediatly cut off with
"If you've got a question, go somewhere else. When you're ready to buy, come back here. NEXT!" And that's exactly what I did.
