After we found out that unpaid items are getting queued up, there's gotta be a way to figure out the exact numbers. Otherwise, the whole market's screwed. This is trickier than it looks, because you just assumed there were "X" items when you opened the market, but turns out it was "X minus Y." I figure the right way to fix the market is to do: items at the start of the market + new items - unpaid items from the start of the market.