Grade 9 vs PSA 10 Joe Boever #627 1988 Topps Baseball: price difference
Joe Boever #627 1988 Topps Baseball value — Grade 9 $6 vs PSA 10 $116. PSA 10 sells for 19.33× Grade 9 (+1833%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 9 vs PSA 10
$6→$116
PSA 10 sells for 19.33× (+1833%) the Grade 9 price — a $110 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Joe Boever #627 1988 Topps Baseball, the jump from Grade 9 to PSA 10 is worth $110 (19.33×) — 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).