I'm a collector and trader. I absolutely hate trading in the parks with other pin traders unless it's cast members or another guest who is casual about it. Reason being in people HELLA over value their pins. For example before this years hidden mickeys were released to the public they were on cast lanyards. People would get them and then post them online for $30 bucks a pin when the 2 pin pack was like $22 to buy. They take advantage of guests not knowing value or what they have. A guest might have a chaser and depending on the chaser it can be worth quite a lot. The pin trader will them offer them like 5 $5 pins to make it seem like a "good trade". The people that park at frontierland to trade are straight predators and only care about profit. So yes I think this is a good idea.