The market ward concept has failed and requires revision.

There isn't enough space on each row to accommodate everybody's retainers. This leads to monopolizing certain areas of the market as well as extreme disorganization within the market wards, because spots are so rare that people sell whatever they have when they find one.

What purpose do they serve, anymore, anyways? What's the point of perusing the markets when you can easily search for whatever you need and instantly find it? It's a system that combines the search functionality of an auction house with the manual labor of a market. It needs to be one or the other.