Tips, guides, and insights from the Stakks team.
Ludex, CollX, Center Stage, Card Ladder, Slabfy, Cards AI and Stakks compared: what each does, 2026 pricing from their own listings, and where each one loses.
Ken Griffey Jr rookie card value in 2026: what the 1989 Upper Deck #1 is worth by grade (raw to PSA 10), his five other rookies, and how to spot fakes.
Michael Jordan rookie card values in 2026: what the 1986 Fleer #57 sells for raw and graded, the Star XRC question, the fake problem, and how to check your copy.
How to catalog a large card collection: sort first, scan to identify, capture key fields, and track total value. Works for 500 to 50,000 cards.
The complete guide to storing sports cards: sleeves, toploaders, binders, graded slab storage, handling rules, and the heat/humidity/UV thresholds that protect value.
Organize a sports card collection and track its value: sort by sport, player, or set; app vs. spreadsheet inventory; and how to watch your portfolio value over time.
Sports cards can increase in value, but most don't. Learn which cards appreciate, what drives long-term value, and how to track your collection's worth.
Topps card values run from $0.10 to millions. Learn what drives the price: set, player, card type, and condition. Check any Topps card's value fast.
The most expensive sports cards ever sold, from the $12.6M Mickey Mantle to a $4.3M Mahomes rookie. Real auction results and what drove each record price.
The most valuable football cards to look for, from Mahomes' $4.3M National Treasures RC to Brady and Montana rookies. Learn which types carry real value.
The most valuable basketball cards to look for, from Jordan's 1986 Fleer RC to Wembanyama Prizm rookies. Learn what separates $1 cards from $700K ones.
Which baseball cards are worth money? Rookie cards, certified autos, numbered parallels, vintage stars, and error cards collectors hunt — and how to check yours.
Scan any sports card with Stakks to see its value and organize your collection — free.
