CardsUpgrade on eBay discounts bundled orders by 5% on two items, 10% on three, and 15% on four or more, with the discount capped at $100. Listings cover baseball, football, basketball, hockey, and soccer cards, including sealed vintage wax packs, graded slabs, and rookie cards, already marked down to bein with. Prices start at $1 for singles like the 2025 Bowman Draft Max Clark rookie, while a lot of four sealed 1990 Fleer baseball packs is $8. Shop Now at eBay