Just thought...Maybe he's got a mate down the pub who knows a bit about Dukes but is a bit hard of hearing. You can imagine the conversation.

:"I'm going to sell the ST4"

:"Y'what? Pardon...speak up lad"

"I SAID, I'M SELLING THE ST4 WHAT DO YOU THINK IT'S WORTH?"

:"Bloody 'ell, an
SP4? Very rare they are lad, worth a bloody fortune I shouldn't wonder"

: "Bloody brilliant...I'll stick it on eBay then"