In Gothic 3 NPC's re-spawn their weapons every time you leave the screeen so if you are short on cash you just whack them over - take their weapon - run away and come back.
I recommend doing this with the guy who has a hut by himself at the entrance to the fire clan. He has a barbarian axe worth 11,000 gold and there are no other NPC's anywhere near him so you don't even have to bother with being sneaky. although the skill that lets you knock people down with 1 hit using a club from behind is useful for cutting the time down.
I had over 100k worth of barbarian axes in a few minutes work....
I recommend doing this with the guy who has a hut by himself at the entrance to the fire clan. He has a barbarian axe worth 11,000 gold and there are no other NPC's anywhere near him so you don't even have to bother with being sneaky. although the skill that lets you knock people down with 1 hit using a club from behind is useful for cutting the time down.
I had over 100k worth of barbarian axes in a few minutes work....