Hey everyone! I found some good places to buy and/or trade disney pins online:
Boosterpacks and Beyond
They are a shop located in Kissimmee, Florida that sell authentic Disney pins of all varieties including open edition and LE. There is also a trading group sponsored by BPB which I linked above as well!
Its not purchasing, but always look at Antique Store and Goodwill because sometimes they put them in the jewelry isle being they think you wear these. I have found many great pins there. Even if you don’t like them, can always use them as traders.
I’ve had great luck, starting with or joining a local pin trading group. There is always some members who are going back and forth to parks, and willing to share the excitment by picking up a few pins. Plus its very social! 🙂