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Joe Blow #84a 1986 Garbage Pail Kids Series 3 · Principal Back · PSA 6
Principal Back
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PSA pop14
All grades · value and PSA population
JOE BLOW ACTIVEno PSA 6 listed on eBay right now
RAW (UNGRADED) — NOT A GRADED VALUE
$2
59 raw sales used for this value
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Front
Back
Price history · PSA 6
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 Thin To Call
The Garbologist has been digging through this one's trash.
- Only 2 recorded sales on the books — not enough for a trend without kidding ourselves. The last one changed hands at $24 on 2026-10-16.
- With this little to go on, the honest answer is we can't call a direction — one auction would swing the whole read.
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.
Joe Blow — across every card
Subject page →Every Joe Blow 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 10Only about 1 in 8 copies of this card get a 10, and a 9 is worth $81 — less than the $92 it costs to grade.
Expected value if gradedunder $0 (the likely slab, $72, is $20 short of the $92 all-in cost)
Raw value today$2 (from 59 raw sales)
VerdictOnly if you're confident it's a 10
Break-even: you need about a 24% chance of a PSA 10 (this card: 13%).
Chance of a PSA 10
13%
this card · 154 graded
PSA 10 value
$244
today · ~$244 by Feb 12, 2027
PSA 9 value
$81
today · ~$81 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 (this card, 154 PSA-graded): 10 · 13%, 9 · 34%, 8 · 21%, 7 or lower · 32%. 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 (this card, 154 PSA-graded): 10 · 13%, 9 · 34%, 8 · 21%, 7 or lower · 32%. 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.
Joe Blow #84a Principal Back 1986 Garbage Pail Kids value by grade
| Grade | Value | Sales | PSA pop |
|---|---|---|---|
| PSA 10 | $244 | 7 | 20 |
| PSA 9 | $81 | 22 | 52 |
| PSA 8.5 | $42 | 2 | 3 |
| PSA 8 | $27 | 9 | 29 |
| PSA 7 | $27 | 3 | 15 |
| PSA 6 | $25 | 2 | 14 |
| PSA 5 | $19 | 2 | 12 |
| PSA 4 | $14 est. | 0 | 7 |
| PSA 2 | $13 est. | 0 | 1 |
| PSA 1 | $12 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.
