Ungraded vs PSA 10 Brent Strom #643 1975 Topps Baseball: price difference
Brent Strom #643 1975 Topps Baseball value — Ungraded $2 vs PSA 10 $5124. PSA 10 sells for 2,562× Ungraded (+256100%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 2,562× (+256100%) the Ungraded price — a $5,122 difference per card.
PSA 10 sells for 62.49× (+6149%) the Grade 9 price — a $5,042 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Brent Strom #643 1975 Topps Baseball, the jump from Ungraded to PSA 10 is worth $5,122 (2,562×) — 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).