Ungraded vs PSA 10 John Smiley #334 1990 Score Baseball: price difference
John Smiley #334 1990 Score Baseball value — Ungraded $1 vs PSA 10 $29. PSA 10 sells for 29× Ungraded (+2800%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Ungraded vs PSA 10
$1→$29
PSA 10 sells for 29× (+2800%) the Ungraded price — a $28 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On John Smiley #334 1990 Score Baseball, the jump from Ungraded to PSA 10 is worth $28 (29×) — 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).