Where do these graded prices come from?

Medians of 8 real eBay completed sales aggregated per grade (PSA, BGS, CGC) — a completed-sale evidence layer, not listing asks. Sample sizes are shown per grade; thin grades deserve caution.

Is grading Retro Energy worth it?

Compare the graded medians below against the raw reference price of $8.73 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 8 completed sales

Retro Energy graded prices.

As of August 21, 2026, Retro Energy (Skyridge #144) trades across the graded ladder below, based on 8 real eBay completed sales; the raw copy’s reference price is $8.73.

Across Skyridge, PSA 10 copies sell for 13.9× their raw reference price on average (63 cards, 413 PSA 10 completed sales tracked).

As of August 21, 2026Raw price & chart →Grading ROI calculator →

PSA · Retro Energy

Grade	Median	Sales	vs Raw
Mint 9	$22.99	4	2.6×

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.