The real problem with unique items is the fact that I as a noble need to beg commoners to repair them for me.
Most of the time, no advies even bother to reply to my letter asking them to fix my item. The ones that reply either can't find a sage or don't have the required items for the repair.
When I play adventurer, I ignore request to repair items because I am worried about failing in the quest and getting my head chopped off.