Market Ward is better,

Market Ward is pretty much the same thing without Price History, that means, whn u put up an item, u set the price depending on your diffculty in obtaining the item. Sure u can chk what other people are selling it but, jus like you, they are following someone else's price- other mayb not obtained the item the same way u did(craft, reward, drop, etc), so the price for it varies between players, overall it prevents undercutters who eventually crush economy and cause inflation/deflation.