Ungraded vs Grade 8.0 House of Secrets #78 (1966): price difference

House of Secrets #78 (1966) value — Ungraded $12 vs Grade 8.0 $100. Grade 8.0 sells for 8.33× Ungraded (+733%). Prices updated September 2026.

GradeSold medianvs Ungraded
Ungraded$12eBay ↗
Grade 6.0$494.08× · +308%eBay ↗
Grade 8.0$1008.33× · +733%eBay ↗

Medians of real sold listings per grade, updated September 2026 how we compute values.

Ungraded vs Grade 8.0
$12$100

Grade 8.0 sells for 8.33× (+733%) the Ungraded price — a $88 difference per comic.

Ungraded vs Grade 6.0
$12$49

Grade 6.0 sells for 4.08× (+308%) the Ungraded price — a $37 difference per comic.

Should you get this comic graded?

Grading runs about $30 per comic all-in. On House of Secrets #78 (1966), the jump from Ungraded to Grade 8.0 is worth $88 (8.33×) — 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 →
See current eBay listingsSee sold House of Secrets #78 (1966) listings ↗Full House of Secrets #78 (1966) price guide →

Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).

House of Secrets #78 (1966): Ungraded vs Grade 8.0 Price Difference