I've had really good luck buying/selling Audio Equipment on Reddit. I assume video game collectibles would work there as well. Just as long as you deal in PayPal or in person you should be fine. Did a quick search and this seems like a popular place, I assume it be a good place to sell collectibles as well - https://www.reddit.com/r/GameSale/ Just an FYI, Don't forget to read the rules on the sidebar!
2/27/17 at 8:00am