Ungraded vs Grade 8.0 Amazing Heroes #139 (1988): price difference
Amazing Heroes #139 (1988) value — Ungraded $47 vs Grade 8.0 $95. Grade 8.0 sells for 2.02× Ungraded (+102%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 2.02× (+102%) the Ungraded price — a $48 difference per comic.
Grade 6.0 sells for 1.68× (+68%) the Ungraded price — a $32 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Amazing Heroes #139 (1988), the jump from Ungraded to Grade 8.0 is worth $48 (2.02×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).