Why in the world would anyone put their retainer in a ward that gets almost no traffic? People put their retainers in the Battlecraft Ward because that's usually everyone's first stop. More people looking at your wares means more chances of it selling...
Not necessarily true.
If I'm looking for jewelry for example i'm going to the jeweler's ward first. If the item i want isnt there I will probably just find another option to obtain it outside of the market wards entirely. I would rather level the **** craft myself and make the item than spend 10 seconds in the battlecraft ward sifting through people's marmot meat, moko grass and whatever else that doesn't belong there. I'm certain i am not alone.
Also consider that most people in the battlecraft wards are looking for weapons, not whatever ward-inappropriate items youve placed there because the traffic is better. What good is traffic if its the WRONG traffic?
The battlecraft wards are so congested that most people who are looking for something particular simply avoid them. Why bother? It's more likely you'll just lose time than ever find what you want.