Bleacher Seats Collectibles sells hobby supplies, sports memorabilia, and trading card collectibles.

Kirk Welch sells sports, celebrity and historical autographs on eBay and Amazon through the Multiple Channel Control Panel.

Brian Marcy, owner of Scottsdale Cards, sells vintage sports cards on Amazon, Bigcommerce and eBay.

When a person selling sports cards online graduates from collector to dealer status, there are decisions to be made. Long time Sports Card Dealers face the same questions.