I honestly loved how the GW2 system worked. You still sell the items for the price you put them up for.
I MUCH prefer that option. Or WoW's. Or Everquests. Or basically any other game, as both a high-volume seller and high-volume buyer.

I want to be able to list items at the cost they're worth to me, in one stack, and be done with it. I dont want to spend half a retainer slot sorting out a stack of things you arent ever going to buy more than 4 of at a time into stacks of 4. I want to list all x many, at one price, and let people buy them.

Similarily, I want to walk to a mb and buy the X cheapest Y items in as few button presses as possible and be done with it.

14's system is clunky, takes way too much time, and is just blaaah compared to basically any other games auction house / market board / bazaar system. Its the least friendly for both buying and selling (and given its exceptionally limited to how much you can sell...) and I spend significant amounts of time hating it.