What an item is worth is down to personal opinion, nothing is set in stone to say you must pay this or that amount, not a penny more or less.
I can totally understand why this went high tho, “Rare” is a blaise description nowadays, most Smiths items you see on eBay come with a “MEGA RARE!!” Tag, even if it’s pure shit and not worth a bean. But anyone who takes their collecting seriously knows this is an almost impossible find. I can’t ever recall seeing one for sale, can you? Any info we have on it is pure educated speculation, I’ve heard it’s an early UK proof, a promo prop handed out by Cartel Reps, an aborted Hong Kong prototype which never reached the commercial release stage, etc etc. Your guess is as good as mine but a bit of mystique never harmed. These are rarer than a Hand In Glove negative sleeves, I’m almost positive of that.