Quaxly

Don't pay to grade a PSA 10 — none have sold in two weeks, and you're looking at a 20.76× multiplier over raw just to chase £224. The cheapest copy at £10.80 is flagged as played condition, so a clean Near Mint will command more; bear in mind that 57% of UK listings are played copies, which makes condition the real divider here. A PSA 10 is worth 10.2× a 9 (£224 versus £21.96), so only grade a flawless copy. The 30-day range sits between £8.03 and £9.00, so the current market isn't moving much.

• CautionPSA 10 hasn't sold in two weeks. Don't pay to grade.
• CautionA PSA 10 is worth 10.2× a 9 (£224 vs £21.96); only grade a flawless copy.
• CautionThe cheapest copy (£10.80) is flagged: graded LP by the classifier. A clean copy can ask more.
• Notable57% of the UK listings are played copies (13 of 23); a Near Mint copy is the scarce one.
• NotableAt a 30-day high of £9.00 (the low was £8.03).