Ungraded vs Grade 8.0 The X-Men #139 (1980): price difference
The X-Men #139 (1980) value — Ungraded $22 vs Grade 8.0 $45. Grade 8.0 sells for 2.05× Ungraded (+105%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 2.05× (+105%) the Ungraded price — a $23 difference per comic.
Grade 8.0 sells for 1.88× (+88%) the Grade 6.0 price — a $21 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On The X-Men #139 (1980), the jump from Ungraded to Grade 8.0 is worth $23 (2.05×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. 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).