90% of those guys who drive around call BHCC, that's their "guy". I know because a lot of them call me once, and when I won't wire them money over a phone call and a cell phone pic they stop calling me.
Luckily they aren't around here, but I live in a small town. Every once in awhile one of those guys stops by the shop and says, "I got a guy who will buy everything here." I politely explain that I sell at full retail and there is nothing for you here.
---Adam