Keep Mari's prices updated

I’ve noticed more often than not that Mari’s shop prices don’t accurately reflect the current in game economy prices. Mari’s shop is a fantastic way to instill real currency into the game, but if there is no deal to be had, what is the point. I can just use my gold to buy off the auction house for a better price-to-cost ratio. If Mari’s shop prices were consistently updated, a good bargain could be had and additional incentive to buy from mari.