Pin trading class was free. It was for kids just getting into pin trading, though I don't know how they would know if you were or weren't. We were there for our first family trip ever and found out about the class in the main pin trading shop near/in Tomorrowland, just before getting to Buzz's eating area. Anyway, we just asked when the next class was, signed up and came back the next day. They went through all the ins and outs of trading, then let the kids select easter eggs with pins inside. If they didn't like the pins they would trade with the pin trader before they left. My kids seemed to like trading more than worrying about what they got/received. My 4yo would get a pin in trade then turn around and trade it with the next person he saw. He was MR. TRADER!!