Gardevoir (JP Illustration Grand Prix Winner 2019)

The cheapest listing here at £21.50 is flagged as LP condition, so a clean raw copy should command more—the median UK ask sits at £37.10, and recent sales back that up at £22.65 across 23 transactions in the last 90 days. You're seeing stock move steadily at roughly two sales per week, which suggests decent appetite. The spread is wide though: asking prices range from £21.50 right up to £37.10, leaving room to pitch depending on condition.

• CautionThe cheapest copy (£21.50) is flagged: graded LP by the classifier. A clean copy can ask more.
• NotableRaw copies actually sell for £22.65 (23 UK sales in 90 days, latest £25.66 on 2 Oct); the cheapest ask is £21.50.
• NotableRaw copies sell about 2 times a week (4 sales in 14 days).
• NotableUK asks run from £21.50 to a £37.10 median; the cheapest is 42% under the middle.