AuctionHousePrices

AuctionHousePrices is an super lightweight Addon that lets you scan the Auction House for Prices of items currently available on the Auction House and let the Prices of the items be displayed in every item tooltip.

Item Prices will be displayed as minimum prices (Addon Scans the current prices and always picks the lowest price). After scanning, you can see the minimum price for every (tradeable) item directly in the item's tooltip. 

The Addon also shows you when you scanned the Auction House the last time.