Sports Card Advisory

Get the most from your sports card collection

CardPeak Consulting provides expert evaluation, grading guidance, eBay listing optimization, and consignment strategy — so you sell smarter and achieve top-market prices across every channel.

One short note a month. The guide arrives by email — reply to unsubscribe.

For estate executors & heirs

Selling an inherited sports card collection?

A 4-step roadmap — inventory, evaluate, grade, sell — with a free 15-minute scope call before any spend, so you make confident decisions on a loved one's collection.

Free guide

25 mistakes sports card sellers
make on eBay — and how to fix them.

From listing copy that buyers actually search, to packaging that survives a shipping dispute — twenty-five specific changes you can apply to your next auction. Free PDF, no signup walls.

  • How to write titles eBay search matches in the first three words.
  • The packaging stack that survives a SNAD dispute — sleeve, top-loader, team bag.
  • When to list (and why Sunday evening through Tuesday morning wins).
  • Why “Gem Mint” on a raw card is the fastest way to lose feedback.
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Market Opportunity

With the sports card market valued at over $12 billion and eBay reporting sustained double-digit growth, collectors and investors have more at stake than ever. Expert guidance makes the difference between a average sale and a record-breaking one.

$12B+
Market Size
2-3×
Value Lift
10+%
Annual Growth

What We Do

End-to-end consulting for every collection

Whether you're a returning hobbyist, a portfolio investor, or managing an inherited collection, we provide the strategic insight and platform expertise to maximize your outcome.

Collection Evaluation

Comprehensive market-value assessment of your entire collection, from vintage rookies to modern stars.

Valuation
Grading Guidance

Which cards to submit, which to sell raw, and which grading service best fits your portfolio strategy.

Grading
eBay Listing Optimization

We craft titles, descriptions, and pricing strategies that rank higher and convert better.

eBay
Pricing Strategy

Market timing, price anchoring, and comp analysis to list at the moment that maximizes your return.

Strategy
Consignment Consulting

Hands-off selling through trusted consignment partners — we handle the introductions and terms.

Consignment
Estate & Inherited Collections

Sensitive, expert handling of inherited collections — fair valuations, orderly liquidation, executor support.

Estates

Why CardPeak

We don't buy collections. We make yours worth more.

Independent, not a buyer

We never buy collections outright. Our incentive is aligned with yours: maximize your sale price, not our margin.

Platform expertise

Deep experience across eBay, PWCC, Goldin, and heritage auctions — we match your cards to the right venue.

Personalized recommendations

No cookie-cutter advice. Every collection is different, and our recommendations reflect your goals, timeline, and risk tolerance.

No hidden fees

Transparent scope and pricing before we start. We bill by the engagement, not a percentage of your sale.

Client Stories

Trusted by collectors, sellers, and executors alike.

Real outcomes from estate clean-outs, eBay listings, and long-time collections — worked end-to-end with the CardPeak team.

I sat on an inherited collection for two years not knowing where to start. CardPeak evaluated everything, guided me through grading, and helped me sell for nearly three times what I expected. The whole process took three weeks.
JM
James M.
Estate Executor, Minnesota
My eBay listings used to sit for weeks. After CardPeak rewrote my titles, restructured my pricing, and timed the drops, sales doubled within a month. The 3× return on my last batch paid for the engagement ten times over.
MR
Marcus R.
eBay Seller, Ohio
I had no idea what my late husband’s collection was worth — or where to even begin. CardPeak gave me a clear valuation, a step-by-step plan, and handled consignment for the high-end cards. Honest, patient, and worth every dollar.
DK
Diane K.
Estate Executor, Texas
I’ve been collecting for fifteen years and learned more in one consultation than I had in a decade of forums. Their grading guidance alone saved me from submitting six cards that would’ve come back below mint.
TS
Tyler S.
Hobby Collector

Ready to unlock your collection's full value?

Send us a note and we'll respond within one business day to discuss your goals and next steps. No obligation, no pressure — just honest advice.

Pricing built for the work

Four archetypes, four rate cards.

Hobby collector, eBay seller, estate executor, or card shop — every CardPeak engagement starts with a free fit call and an exact quote for the archetype that matches you.

Hobby Collector

Strategy & grading advice

$99 evaluation, $150/mo coaching, $249 authentication guidance.

eBay Seller

Sell faster, at higher prices

$499 store audit, $5–$8 per listing DFY, $250/mo active-seller coaching.

Estate / Heir

One-time larger engagement

$499 intake + roadmap, 18% DFY liquidation, $300 consignment coaching.

Card Shop / Breaker

Recurring B2B consulting

12% consignment, $500/mo retainer, $999 bulk grading-submission prep.

In practice

Who we work with and what we deliver.

Three credibility signals from the founder’s six-figure portfolio, the playbook our engagements follow, and the archetype-keyed rate card.

$600k
Founder's personal collection, valued at acquisition cost.

Six figures of sports cards on the founder's own shelves back every CardPeak engagement — the same read on condition, market, and timing that goes out with every brief.

Read the founder's story →

From the playbook

25 eBay seller fixes, bucketed by topic.

The full playbook ships as /free-guide.pdf — what to grade, how to disclose, when to list, and the shipping layers that prevent SNAD claims.

  • Listings
  • Photography
  • Disclosure
  • Authenticity
  • Grading
  • Pricing
  • Shipping
  • Operations
  • Returns
  • Category
  • Timing
  • Reputation
  • Description
  • Vocabulary

Who we work with

Four archetypes on the rate card.
Hobby collector

What to grade, what to keep, how to grow the collection with intent — without a sale at the other end of every conversation.

eBay seller

Listing copy, photography direction, pricing windows, and store-audit fixes that move inventory faster at higher realized prices.

Estate executor

A one-time roadmap for inherited collections — intake, scope, venue mix, and the paperwork that goes with a clean liquidation.

Card shop

Recurring B2B consulting on consignment pipeline, submission prep, and the venue mix that fits a working shop’s weekly volume.