Ungraded vs PSA 10 Professor Elm's Lecture #188: price difference
Professor Elm's Lecture #188 value — Ungraded $1 vs PSA 10 $66. PSA 10 sells for 66× Ungraded (+6500%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 66× (+6500%) the Ungraded price — a $65 difference per card.
Grade 9 sells for 55× (+5400%) the Ungraded price — a $54 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Professor Elm's Lecture #188, the jump from Ungraded to PSA 10 is worth $65 (66×) — 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).