![Power Plant [Reverse Holo] #139](/api/images/junkpal-products/cards/power-plant-reverse-holo-139-pokemon-aquapolis-card/img0/cover.webp)
Ungraded vs PSA 10 Power Plant [Reverse Holo] #139: price difference
Power Plant [Reverse Holo] #139 value — Ungraded $9 vs PSA 10 $349. PSA 10 sells for 38.78× Ungraded (+3778%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 38.78× (+3778%) the Ungraded price — a $340 difference per card.
PSA 10 sells for 6.98× (+598%) the Grade 9 price — a $299 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Power Plant [Reverse Holo] #139, the jump from Ungraded to PSA 10 is worth $340 (38.78×) — 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).