Set ↗30d−12%few sales90d+16%few sales1y+32%not clear yet
This card30d 90d 1y All-time 

Snot-Ball Saul #590b 1988 Garbage Pail Kids Series 15 · PSA 9

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PSA pop10

PSA 9 · 1988 Garbage Pail Kids Original Series 15 →

⤴ Buy · next 3 monthsDown from about $23 to $19, while most cards in its set sold higher this quarter. Cards with a dip this size usually sold back at or a little above their earlier price within 3 months (629 cards since 2019).
PSA pop · this parallel
10
Card # 590b⇄ 590ALittle Leak Len
GPK Price Guide Value iBased on this card’s sales at this grade: the newest sale ($16, Oct 22) counts most; similar cards point higher ($21); and 3 sales in 2026 near $22.
$19
PSA 9 · from 5 real sales · last sold Oct 22▲ +58%
PSA 10 comp $104
no PSA 9 listed on eBay right now
RAW (UNGRADED) — NOT A GRADED VALUE
$5
9 raw sales used for this value view raw sales →
● real comps ● est. — own older sales ● est. — never sold ● unsold
Price history · PSA 9
On-the-record sales go back as far as PSA reports them — late 2017 for GPK — plus eBay-tracked and raw sales as they land.
DatePriceGradeCertType
2026-10-22$15.55PSA 9169728135 ↗Auction
2026-09-26$23PSA 9150301722 ↗Auction
2026-03-01$22.50PSA 955575146 ↗Auction
2020-11-01$8.50PSA 946962105 ↗Auction
2020-06-30$19.99PSA 920241997 ↗Auction

🗑️ The Garbologist says…

Trending Up
The Garbologist has been digging through this one's trash.
  • 5 recorded sales · 3 in the last year · trades only a few times a year · limited-confidence sample.
  • Its last few sales went $20 → $8 → $22 → $23 → $16 — a clear march higher.
  • Median moved +58% across the window ($14 → $22).
  • Net-net, the momentum points up — real buyers are paying more, more often. Not a promise, just what the garbage is telling us.

Automated analysis generated from this card’s real recorded sales and PSA population data — no opinions, no predictions guaranteed. Entertainment and research only, not financial advice.

Snot-Ball Saul — across every card

Subject page →
Every Snot-Ball Saul card we track — how the character is moving, not just this one grade.

🧬 Should I slab it?

Keep it raw

About 1 in 3 copies of 1988 Original Series 15 cards get a 10, and a 9 is worth $19 — less than the $92 it costs to grade.

Expected value if gradedunder $0 (the likely slab, $48, is $44 short of the $92 all-in cost)
Raw value today$5 (from 9 raw sales)
VerdictKeep it raw

Break-even: you need about a 92% chance of a PSA 10 (1988 Original Series 15 cards: 35%).

Chance of a PSA 10
35%
1988 Original Series 15 cards · 2,223 graded
PSA 10 value
$104
today · ~$104 by Feb 12, 2027
PSA 9 value
$19
today · ~$19 by Feb 12, 2027
All-in cost
$92
PSA fee $60 + shipping both ways $32
How these numbers work
All-in cost $92: PSA Standard tier fee $60 per card, insured shipping to PSA ~$12, PSA insured return shipping ~$20. Sending it to your PSA Vault instead skips return shipping (vault intake and storage are free): ~$72 all-in, so a graded copy would net ~under $0.
Grade odds (1988 Original Series 15 cards, 2,223 PSA-graded): 10 · 35%, 9 · 41%, 8 · 12%, 7 or lower · 11%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 12, 2027): today's values (the set has no clear 3-month trend).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.

Snot-Ball Saul #590b 1988 Garbage Pail Kids Series 15 value by grade

GradeValueSalesPSA pop
PSA 10$10436
PSA 9$19510
PSA 8$17 est.01
PSA 6$12 est.02

Every grade of this card on one page. Est. = no sale at that grade yet. Tap a grade above to switch the whole page to it.

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