Try buying at a different time today.
If you never check the auction house in the morning, get up a little earlier and take a peak tomorrow.
Also, try to check more than once separated by at least 8 hours. You'd be shocked at the changes of prices that can occur in as little as 8 hours.
If you are in the habit of checking once per day then you could be missing out on some great deals!
Also, if you are into the enchanting business you can easily cancel your auctions and relist in order to react to market changes during the same day that you originally posted them.