WowAce

- What is the enhancement in mind? How should it look and feel?

When you're putting something for sale, it shows you the current competition. Competition that is undercutting way below the market price is slightly more translucent. This is what the addon does atm.

What I suggest is to add the ability to buy out those competing auctions that are selling extremely low. Perhaps a right click on the item that opens a context menu, or a sliding panel, or an extra button at the bottom.

I think it is a really good idea that would help maximize profits of the items you're trying to sell.