This place gives you the opportunity to trade with other players and sell your rare items for a higher price than in the shops.
When you offer an item, you can specify the minimum price it will be sold. If the item is sold at a higher price, you will earn half of the extra profit too! If the market inspector finds your wares on the market are too expensive and unlikely to be sold, they will be transported back to your home - if there is enough room for them.
When you want to buy an item, automatically the cheapest offer will be accepted (since the wares are of the same - very high - quality). You can specify a maximum price above which no more items will be bought.
Items can be sold only within 50%-2500% of their street price. have an upper limit of 3000%.