GameStop could actually help solve some problems eBay has. GameStop has stores everywhere that can serve as pickup locations to avoid theft problems. GameStop has humans that can help with scam offerings where fake items were sent, or verify an item is intact before returning so a seller can’t lie about it being broken. eBay can become a supply source for collectables or whatever products GameStop wants to focus on in stores. They could sell a membership that lets you have items shipped to your store for inspection before purchasing or something like that.