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Rotten Robin #337b 1987 Garbage Pail Kids Series 9 · Checklist · PSA 10
Checklist
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All grades · value and PSA population
ROTTEN ROBIN ACTIVE🟢 lowest on eBay: $55.98 all-in
🛒 2 listings on eBay now PSA 10 SLAB ×1 · RAW ×1
RAW (UNGRADED) — NOT A GRADED VALUE
$2
9 raw sales used for this value
view raw sales →
Front
Back
Price history · PSA 10
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
The Garbologist sniffed around the sales pile.
- 3 recorded sales · 2 in the last year · trades only a few times a year · limited-confidence sample.
- The recent trail reads $50 → $50 → $40 — ran up to a peak of $50, then cooled back off.
- Census check: PSA has graded 26 of this card, and only 46.2% come back a 10 — gems fairly readily.
- 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.
Rotten Robin — across every card
Subject page →Every Rotten Robin card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
Keep it rawOnly about 1 in 3 copies of 1987 Original Series 9 cards get a 10, and a 9 is worth $20 — less than the $92 it costs to grade. Even a 10 ($49) would leave you about -$43 after costs, not more than raw.
Expected value if gradedunder $0 (the likely slab, $27, is $65 short of the $92 all-in cost)
Raw value today$2 (from 9 raw sales)
VerdictKeep it raw
Even a PSA 10 would not beat the raw value.
Chance of a PSA 10
31%
all 1987 Original Series 9 cards · 2,868 graded
PSA 10 value
$49
today · ~$49 by Feb 12, 2027
PSA 9 value
$20
today · ~$20 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 (all 1987 Original Series 9 cards, 2,868 PSA-graded): 10 · 31%, 9 · 36%, 8 · 14%, 7 or lower · 18%. 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 (all 1987 Original Series 9 cards, 2,868 PSA-graded): 10 · 31%, 9 · 36%, 8 · 14%, 7 or lower · 18%. 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.
Rotten Robin #337b Checklist 1987 Garbage Pail Kids value by grade
| Grade | Value | Sales | PSA pop |
|---|---|---|---|
| PSA 10 | $49 | 3 | 12 |
| PSA 9 | $20 | 1 | 9 |
| PSA 8 | $19 | 1 | 3 |
| PSA 7 | $11 est. | 0 | 1 |
| PSA 5 | $8 est. | 0 | 1 |
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.
