The American Pickers is a produced and scripted show. All the negotiations and prices are done ahead of time by the producers. I long ago gave up on the notion that any of it was real, but still enjoy the show. It does drive me crazy when they walk right past some cool Model A or A parts to get all excited about an old crappy ice-cream sign!
I got a good laugh when Frank got all excited and bought a "1931 Roadster" that was actually a 28-29 Coupe!
BTW I get the impression from the show that the south is just filled with undiscovered Model A Fords and ford parts!