They do not sell refurbished in Apple Stores. Refurbished means a product purchased at the online store was sent back, looked over by an Apple technician, and then offered for resale online.
They do however sell "refreshed" items at the local Apple store. These items were originally bought at the local store and returned for some reason. These items are looked over by an Apple employee at the local store and are available for resale. They may be in the back and not up front, so you have to ask if there are any available. There is a discount which can be similar to the refurbished discount, but it may not be the same.
I purchased an Airport Extreme N base station this way. It is working great. I suggest you call the store and ask if they have any "refreshed" items.