K-9, Mark I (Doctor Who) — Market vs Foil: which is worth more?
K-9, Mark I (Doctor Who) value — Market $4.25 vs Foil $5.77. Foil sells for 1.36× Market (+36%). Prices updated September 2026.
Medians of real sold listings per condition, updated September 2026 — how we compute values.
Market vs Foil
$4.25→$5.77
Foil sells for 1.36× (+36%) the Market price — a $1.52 difference per card.
Is complete worth it?
Foil $5.77 vs Market $4.25 — a $1.52 premium (+36%). If you're holding the box and manual, completing a loose copy pays when that premium beats what the missing pieces cost you.
Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).