What Are My Old Trading Cards Worth?

Found a box of old cards in the attic? Before you give them away or toss them, some of those cards might be worth real money.

Most Old Cards Aren't Valuable — But Some Are

Let's be upfront: the vast majority of trading cards from the late 1980s and 1990s were massively overproduced. That 1989 Topps Ken Griffey Jr. rookie? There are millions of them. Most commons from this era are worth pennies.

But cards from before 1980, key rookies from any era, and modern parallels/autos/numbered cards can be worth serious money. The trick is knowing which ones.

Baseball Cards

1952 Topps Mickey Mantle #311
$50,000 – $10,000,000+
The most iconic baseball card ever. Even low-grade copies sell for five figures. PSA 9+ copies have sold for millions.
1989 Upper Deck Ken Griffey Jr. #1
$5 – $3,000
Raw copies go for $5-20. PSA 10 graded copies sell for $1,500-3,000. One of the most submitted cards to PSA.
2011 Topps Update Mike Trout RC #US175
$50 – $5,000+
The modern era's most valuable base rookie. Raw copies $50-150. PSA 10 copies $3,000-5,000+.

Basketball Cards

1986 Fleer Michael Jordan #57
$3,000 – $500,000+
THE basketball card. Raw copies in good condition sell for $3,000-8,000. PSA 10 copies are six figures.
2018 Prizm Luka Doncic RC #280
$30 – $2,000
Base rookie $30-80 raw. Silver Prizm parallel $200-600. PSA 10 Silver Prizm $1,500+.

Pokémon Cards

1st Edition Base Set Charizard (Holo)
$10,000 – $400,000+
The holy grail of Pokémon. Shadowless 1st edition holos in any grade are valuable. PSA 10 copies have sold for $400,000+.
Base Set Charizard (Unlimited, Non-1st Edition)
$100 – $2,000
The one most people actually have. Still valuable — raw copies $100-300, PSA 9+ copies $800-2,000.

How to Check What Your Cards Are Worth

Step 1: Identify the card. Look at the year, brand (Topps, Fleer, Upper Deck, Prizm, etc.), card number, and player name. Check if it's a rookie card (usually marked "RC" or listed in rookie card checklists).

Step 2: Check for parallels. Is it a base card or a special version? Refractors, holos, numbered cards (/25, /99, /199), and autographed cards are worth significantly more than base.

Step 3: Assess condition. Look at centering, corners, edges, and surface. A perfectly centered card with sharp corners is worth 10-50x more than the same card with soft corners and off-center printing.

Step 4: Check sold prices. Search eBay for your exact card, filter by "Sold items." This tells you what the market is actually paying — not what people are asking.

Skip the manual search

Point your phone at any card. AI identifies it and pulls real eBay sold prices in seconds.

Try finna — it's free
No download required. Works in your browser.

Should You Get Your Cards Graded?

Only grade cards worth $50+ raw. PSA charges $20-150 per card depending on tier and turnaround time. If your card is worth $10 raw, spending $30 to grade it doesn't make sense even if it comes back a PSA 10.

Grade rookies and key cards. A PSA 10 grade on a valuable rookie can multiply the value by 5-20x. But a PSA 7 on the same card might only add 20% over raw value.

Centering kills grades. If your card is visibly off-center, it's unlikely to grade above an 8 regardless of how clean the corners are. Examine centering first before submitting.

Where to Sell Trading Cards

eBay — largest audience, best for cards over $20. Auction format works well for desirable cards. About 13% in fees.

COMC (Check Out My Cards) — consignment service. They handle photos, listing, shipping. Good for bulk selling. Higher fees but zero work.

Facebook Groups — search for sport-specific groups ("Baseball Card Sales", "Pokémon TCG Buy Sell Trade"). No fees, but you need to build reputation.

Local card shops — quickest cash but expect 40-60% of market value. They need to resell at a profit.