Problems
1. Sellers constantly flood the chat channels with solicitations;
2. Sellers congregates at common areas, making it impossible to interact with other players without running into peddlers;
3. Sellers or Buyers could only see solicitations on one server, at particular hours. If I play odd hours, I would miss quite a lot of opportunity to buy/sell.
The above indirectly leads to an imperfect market where buyers of certain items may not able to meet sellers of same items.
Proposed solution
1. Have a Market District where people want to sell/buy would go.
2. Market District would be like international district, all players of all continents could go there to trade.
3. Enforce Market District by disallow trading in other district.
4. OPTIONAL: players can set up "stall" where they could "show" there wares. Buyers would only need to browse through the stalls. This reduces the verbal solicitations.
5. OPTIONAL: sellers would have to put price tags on items (or "make offer" tag).
6. OPTIONAL: an imperfect snapshot of items for sale and the price. Imperfect here in the sense it may not reflect accurately the inventory. This allows players to have a price range in comparison
7. OPTIONAL: the traders (NPCs) would have a profit for being "convenient" (players wouldn't need to go to Market District). But its price reflect the market. Plus, NPC traders would have "cool" items to trade. NPC traders/collector in mission would have even cooler items to trade and I even suggest that certain cool items be customized to the person.
EDIT: This is not in conflict with Auction House idea (which I think is great) but actually a complement of that idea.
L


You could trade in mission.