Graded Market · 11 completed sales
Professor Elm's Training Method graded prices.
As of July 8, 2026, Professor Elm's Training Method (Expedition Base Set #148) in PSA 10 sells for a median of $47.50, based on 11 real eBay completed sales; the raw copy’s reference price is $2.12 — a 22.4× grading premium at the top grade.
PSA · Professor Elm's Training Method
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $47.50 | 6 | 22.4× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.