It would be interesting if much of the equipment could be created and circulated by the players themselves.
For example, if a player makes a weapon, they could name it and depending on faction/race/class/level, effects could make that weapon unique.
If the player sells this weapon to NPC traders, it can be bought by other players, who then carry this unique weapon with the name of the blacksmith.
This way players can leave their mark everywhere in the game world through their craft.
This is a really interesting idea