[Moriarty]

It is my belief that unique items given out as prizes are often intended to be kept by the winner, often they are tailored to suit the winner. ie. shadowguard's sword.

However as the game progresses and you become stronger your weapon item doesnt grow with you and you either have to sell it or store it. Im sure given the chance Shadowguard would pay a sum of money to upgrade his weapon in line with the top longblade weapon available on the market.

Personally If I ever won a unique weapon tailored to Moriarty id be loathed to give it up when it became obselete.