One slight altercation to the MB system would resolve a lot of problems remove the current listing prices from the MB only show what the item has sold for after it is sold, this will prevent massive deflation and undercutting, and the MB system can remain as is, so long as u can see every item and what everyone has that item up for you will continue to have massive deflation. When u have massive deflation of a item in a matter of minutes there is a severe problem.