Ungraded vs Grade 8.0 The X-Men #140 (1980): price difference
The X-Men #140 (1980) value — Ungraded $21 vs Grade 8.0 $35. Grade 8.0 sells for 1.67× Ungraded (+67%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 1.67× (+67%) the Ungraded price — a $14 difference per comic.
Grade 6.0 sells for 1.43× (+43%) the Ungraded price — a $9 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On The X-Men #140 (1980), the jump from Ungraded to Grade 8.0 is worth $14 (1.67×) — 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).