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Brain Les #589b 1988 Garbage Pail Kids Series 15 · PSA 9
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All grades · value and PSA population
BRAIN LES ACTIVE🟢 lowest on eBay: $36.98 all-in
🛒 1 listing on eBay now PSA 9 SLAB
RAW (UNGRADED) — NOT A GRADED VALUE
$5
8 raw sales used for this value
view raw sales →
Front
Back
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.
🗑️ The Garbologist says…
Too Few Recent Sales
Straight from the Garbologist's clipboard:
- 4 recorded sales · 2 in the last year · trades only a few times a year · limited-confidence sample.
- The recent trail reads $15 → $15 → $10 → $40 — choppy but broadly rangebound.
- Heads up: the last recorded sale ($40 on 2026-06-17) landed 90% above our current value — weigh it as a single data point.
- None
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.
Brain Les — across every card
Subject page →Every Brain Les card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
Only if you're confident it's a 10About 1 in 3 copies of 1988 Original Series 15 cards get a 10, and a 9 is worth $21 — less than the $92 it costs to grade.
Expected value if gradedunder $0 (the likely slab, $68, is $24 short of the $92 all-in cost)
Raw value today$5 (from 8 raw sales)
VerdictOnly if you're confident it's a 10
Break-even: you need about a 56% 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
$159
today · ~$159 by Feb 12, 2027
PSA 9 value
$21
today · ~$21 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.
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.
Brain Les #589b 1988 Garbage Pail Kids Series 15 value by grade
| Grade | Value | Sales | PSA pop |
|---|---|---|---|
| PSA 10 | $159 | 1 | 5 |
| PSA 9 | $21 | 4 | 8 |
| PSA 9 (ST) | $16 | 1 | — |
| PSA 8 | $14 | 1 | 2 |
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.
