The store also has a "Buy, Sell, Trade" FB group for the comic community as well.
If I was you, to maximize your money, to sell on eBay. If you have a lot to sell and short on time. Set up a table, white cloth and a digital camera. Take the photos and get a close Overstreet grade for each comic, grade lower than you think. Then list all of your comics at $.99 auction style. Your current listings will drive more customers to your sales. It will be some time, but maximize your profit. My two cents.
You can contact the store directly, and I'm sure they can direct you
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