Ungraded vs Grade 8.0 Marvel Team-Up #90 (1980): price difference
Marvel Team-Up #90 (1980) value — Ungraded $6 vs Grade 8.0 $23. Grade 8.0 sells for 3.83× Ungraded (+283%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 3.83× (+283%) the Ungraded price — a $17 difference per comic.
Grade 6.0 sells for 2.67× (+167%) the Ungraded price — a $10 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Marvel Team-Up #90 (1980), the jump from Ungraded to Grade 8.0 is worth $17 (3.83×) — 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).