All grades · value and PSA population
BRAINY BRIAN ACTIVE🟢 lowest on eBay: $70.71 all-in
🛒 4 listings on eBay now PSA 9 SLAB
RAW (UNGRADED) — NOT A GRADED VALUE
$4
49 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…
Trending Up
Straight from the Garbologist's clipboard:
- 20 recorded sales · 9 in the last year · trades only a few times a year · moderate-confidence sample.
- The recent trail reads $56 → $70 → $75 → $64 → $50 — a clear march higher.
- Median moved +18% across the window ($37 → $59).
- Census check: PSA has graded 130 of this card, and only 19.2% come back a 10 — gems fairly readily.
- 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.
Brainy Brian — across every card
Subject page →Every Brainy Brian card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
BORDERLINERoughly a 19% gem rate on this card's own PSA pop - graded pop is self-selected (best copies get submitted), so a random raw likely grades lower. Expected ~$78 before the $80 PSA fee (fee only - excludes shipping & insurance), ~$-2 after - about even with a raw copy ($4 from 49 raw sales). A coin flip that only pays off on a high grade.
Gem (PSA 10) rate
19%
this card · 130 graded
PSA 10 value
$234
if you hit the ten
Grading cost
$80
PSA Regular tier
Expected after grade
$-2
vs raw $4 from 49 raw sales
Probability-weighted across grades using PSA population (this card) as a proxy for cut & print quality, minus the grading fee. A guide, not a guarantee — centering and eye-appeal on your specific copy decide the grade.
