The salesman at game told us that they guarantee the price for 21 days. If you buy something and it is on special the next week, you can go back and they will refund the difference, even if it is cheaper somewhere else during the 21 days.. Just bought a fridge and they gave us this guarantee.
+1
And they give an IOU slip for anything that advertised because they normally have stock at the warehouse or they can hassle the manufacturers for the item. It took the two weeks to get us a chair that once was advertised but was out of stock.