How about if you have an excess of an item you don't want but can't give to neighbors fast enough, you could sell them to other players? Let's say I am willing to part with Flight Catering x20. Using the Auction House, I could sell it to other players for gold, greenies or a combination of the two. For example, I could sell those 20 flight catering for 2 greens and 2,000 gold to any player that wants them. All prices/item quantities are set by the player at the time of the listing, and all listings would have a limited duration (maybe 24 hours at most). If I needed a particular item, I could buy them from another player. This Auction House function could be accessed in-game.