Blog
News, updates, and insights about WaxEngine and the card selling world.
These posts come out of running a real hockey card store on eBay, currently around 1,500 active listings. They are written to answer the questions that cost sellers money: what a card is actually worth against sold comps rather than asking prices, why relisting everything is not the strategy people think it is, how eBay's search behaviour quietly changes what sells, and what your margin looks like once fees, labels, shipping, and card cost come out.
No affiliate roundups and no reprinted eBay help pages. Where a post makes a claim about numbers, it comes from real orders or the primary published source (eBay's fee schedule, the grading companies' own price pages), linked so you can check it yourself. If you want the tools rather than the reading, the eBay fee calculator and the PSA grading calculator are free and need no account. Setup and feature walkthroughs live in the docs.
eBay Standard Envelope: Cost, Rules, Tracking
Every eBay Standard Envelope rule that matters: 2026 rates, the $20 value cap, the quarter-inch limit, why tracking stalls, and how to pack cards right.
How to Ship Sports Cards on eBay (2026 Guide)
Penny sleeve, top loader, team bag, then the right service by value: eBay Standard Envelope under $20, tracked bubble mailer above. The full workflow and costs.
Most Valuable Hockey Cards: 2026 Rankings
The most valuable hockey cards ever, led by the $3.75M Gretzky O-Pee-Chee rookie, what makes them worth it, and how to find what your own cards are worth.
Best Sports Card Scanner Apps in 2026, Compared Honestly
CollX, Ludex, eBay's Scan to list, Card Dealer Pro, and WaxEngine compared honestly: what each scanner app does best, and which one actually finishes the job.
BGS Grading Cost in 2026: Every Beckett Tier
BGS grading costs $14.95 to $124.95 per card in 2026 across four tiers. Current Beckett prices, subgrade rules, turnaround times, and how BGS compares to PSA.
How Much Does eBay Take From a Sale in 2026?
eBay takes 13.6% of most sales (13.25% on trading cards) plus a $0.30 to $0.40 per-order fee. The full math, worked examples, and what eBay never shows you.
Hockey Card Values: How to Know What Your Cards Are Worth
How to find real hockey card values with eBay sold comps: the 90-day lookup method, what actually drives value, and why price guides mislead.
PSA Grading Cost in 2026: Every Tier, US and Canada
What PSA grading costs in 2026: $79.99 USD or $109 CAD per card at the Regular tier, upcharge rules, turnaround times, and the break-even math.
PSA vs BGS vs SGC in 2026: Which Grader Wins?
PSA, BGS, and SGC compared on real 2026 prices ($79.99 vs $14.95 vs $15 entry fees), turnaround, subgrades, and resale, with a decision guide by card type.
SGC Grading Cost in 2026: Every Tier and Fee
SGC grading costs $15 per card for cards valued up to $1,500, with fees scaling by declared value and a 2-3 day express lane from $150. The full 2026 table.
Whatnot Fees for Sellers in 2026 (vs eBay)
Whatnot charges 8% commission plus 2.9% + $0.30 processing. The 2026 fee math for card sellers, a side-by-side with eBay, and the costs fees don't show.
Are You Actually Making Money Selling Cards on eBay?
Most card sellers know their sales number but not their profit. The real math on eBay fees, shipping and card cost, and how to find your true margin.
eBay Keeps Moving Your Cheese
Seller Hub redesigns, extra taps, wandering notifications. You can't stop eBay changing its UI, but your selling workflow doesn't have to live inside it.
Relisting Everything Won't Save Your eBay Card Store
The end-and-relist-everything advice in card seller groups is mostly wrong. What eBay Best Match actually rewards, and a smarter way to revive stale listings.
How to Price Hockey Cards for eBay
How to price hockey cards for eBay using sold comps: exact-variant matching, what to do when comps don't exist, and the mistakes that leave cards unsold.
Announcing WaxEngine
After a year of managing 1,500+ eBay hockey card listings, we built the tool we always wanted. Today, we're opening it up to other sellers.