This card30d 90d 1y All-time
R.L. Slime R.L. Stine Book Promo 2020 Garbage Pail Kids 35th Anniversary · PSA 10
R.L. Stine Book Promo
Scarcity36,029 made · 1 parallel: print runs and odds
36,029 made of each base card, worked out from Topps’ pack counts by GPKNews.
PSA pop16
R.L. SLIME R.L. STINE BOOK PROMO ACTIVEno PSA 10 listed on eBay right now
RAW (UNGRADED) — NOT A GRADED VALUE
$2
7 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 popped the lid on this card.
- 3 recorded sales · 1 in the last year · trades only a few times a year · limited-confidence sample.
- Following the trash: $16 → $35 → $60 — choppy but broadly rangebound.
- Census check: PSA has graded 22 of this card, and only 72.7% 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.
R.L. Slime R.L. Stine Book Promo — across every card
Subject page →Every R.L. Slime R.L. Stine Book Promo card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
Keep it rawAbout 6 in 10 copies of 2020 35Th Anniversary cards get a 10, and a 9 is worth $48 — less than the $92 it costs to grade. Even a 10 ($60) would leave you about -$32 after costs, not more than raw.
Expected value if gradedunder $0 (the likely slab, $52, is $40 short of the $92 all-in cost)
Raw value today$3 (from 7 raw sales)
VerdictKeep it raw
Even a PSA 10 would not beat the raw value.
Chance of a PSA 10
61%
all 2020 35Th Anniversary cards · 1,660 graded
PSA 10 value
$60
today · ~$60 by Feb 13, 2027
PSA 9 value
$48
today · ~$48 by Feb 13, 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 2020 35Th Anniversary cards, 1,660 PSA-graded): 10 · 61%, 9 · 24%, 8 · 9%, 7 or lower · 6%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 13, 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 2020 35Th Anniversary cards, 1,660 PSA-graded): 10 · 61%, 9 · 24%, 8 · 9%, 7 or lower · 6%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 13, 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.
