duplicated items.
look: in d2 there were very rare and good items.
but on 1 day, "hackers"found out a way to duplicate them, which lead to greatly decrease in value because all good items were "duped"..
1 other side effect was that the duped items dissapear after a while, so just when you think you have bought a good item, if you wake up the next day it is gone.
trust me, you wouldn't like that..
