Ungraded vs PSA 10 Jack McKeon #231 1990 Topps Baseball: price difference
Jack McKeon #231 1990 Topps Baseball value — Ungraded $2 vs PSA 10 $96. PSA 10 sells for 48× Ungraded (+4700%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 48× (+4700%) the Ungraded price — a $94 difference per card.
Grade 9 sells for 10.5× (+950%) the Ungraded price — a $19 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Jack McKeon #231 1990 Topps Baseball, the jump from Ungraded to PSA 10 is worth $94 (48×) — 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).