Seems cool, but sorta useless. Maybe instead, we could sprinkle some hidden NPC's around the map that sell specialized gear.
For example, a black market NPC might sell poison arrows and a flame I bow named Scorpio Scorcher, or an archaeologist might sell the Lucky Compass that gives the holder a 10% speed boost. I'd love to have a hand in developing some extra NPC's and items that give players a different set of end-game gear for Assassins, allowing for different play styles.
This might actually be a nice way to remedy the lack of custom drop parties as well. With the new system (and multiple servers), drop parties are a huge pain in the butt. Adding the occasional new NPC would be a nice way to keep Assassins interesting.