Ungraded vs Grade 8.0 The X-Men #128 (1979): price difference
The X-Men #128 (1979) value — Ungraded $36 vs Grade 8.0 $54. Grade 8.0 sells for 1.5× Ungraded (+50%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 1.5× (+50%) the Ungraded price — a $18 difference per comic.
Grade 8.0 sells for 3× (+200%) the Grade 6.0 price — a $36 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On The X-Men #128 (1979), the jump from Ungraded to Grade 8.0 is worth $18 (1.5×) — 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).