— Holdnext 3 months: cards here were a coin flip, typically about flat
PSA pop · this parallel
3
Card # 1a⇄ 1BSubliminal Sam
GPK Price Guide Value iGPK Price Guide Value is a recency-weighted market value from REAL sales of this exact card+grade (recent comps count most, outliers stripped) — steadier and harder to game than a single 'last sale', which can be one lucky auction or a shill bid. When a card has few or no recent comps, we estimate transparently from its own older sales, its other grades, and comparable cards (same subject/set/rarity tier), factoring subject trend and scarcity — and we LABEL it as an estimate until real sales arrive.
$57
PSA 10 · highest-graded comp
🟢 lowest on eBay: $157.90 all-in
🛒 2 listings on eBay now PSA 10 SLAB ×1 · RAW ×1
RAW (UNGRADED) — NOT A GRADED VALUE
$7
1 raw sale used for this value view raw sales →
● real comps ● est. — own older sales ● est. — never sold ● unsold
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.
DatePriceGradeCertType
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🗑️ The Garbologist says…

Trending Up
The Garbologist sniffed around the sales pile.
  • 3 recorded sales · 1 in the last year · trades only a few times a year · limited-confidence sample.
  • Following the trash: $37 → $89 → $56 — a clear march higher.
  • Median moved +95% across the window ($37 → $72).
  • 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.

Masked Michael — across every card

Subject page →
Every Masked Michael card we track — how the character is moving, not just this one grade.
GPK Price Guide
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