My local place here in Southern CA is run by a terrific guy who knows everything, pays fair, takes the time to explain things, and runs a great bid board. It's a great place to hang around. The owner clearly relishes dealing with smaller-money collectors and will sit with them quite a long time going over their Jeffersons and seeing what they might upgrade. There are some extremely high-spenders who come in, too, and they are treated like everyone else. This guy knows that what makes it worthwhile is not the money; it's the coins themselves.
BTW, it's pretty much a guy place, and maybe an older guy place at that, although women and younger people do come in and are welcome. Soundtrack: 50's and 60's folk music.