Lillipup

The market for this card is heavily skewed toward played copies—67% of UK listings are played condition, so a Near Mint copy will stand out and command a premium over the £20.50 ask you'll see around. Don't bother grading anything below flawless: a PSA 10 is worth 4.9× a 9 (£250 versus £50.67), so the investment only makes sense for a truly pristine card. PSA 10s move regularly at about 2 sales per week, but all 4 recent sales went through as accepted offers rather than at asking price, so there's genuine room to negotiate on the grade.

• CautionA PSA 10 is worth 4.9× a 9 (£250 vs £50.67); only grade a flawless copy.
• CautionThe cheapest copy (£20.50) is flagged: graded LP by the classifier. A clean copy can ask more.
• Notable67% of the UK listings are played copies (8 of 12); a Near Mint copy is the scarce one.
• NotablePSA 10 sells about 2 times a week (4 sales in 14 days).
• Notable4 of the last 4 PSA 10 sales were accepted offers, not asking price; leave room to negotiate.