And hell you can buy practically anything on Amazon on line, some states allow you to buy beer and wine from Amazon. They can sell the idea of opening book stores etc and carry a little bit of everything, just enough of this and that to let people get an idea of what Amazon is all about, Some people think they are just about books and stuff that you would find in a book store, but they would not think of buying hardware like you buy at your local hardware store from them too, that is just an example of what Amazon carries. Amazon would probably have the store employees fill a small amount of orders within the stores from stuff that was order online, and get it deliver to local customers in a very short period of time.
Being that they rely heavily on UPS, FEDEX, and even the USPS alot I could see them opening stores right next door to these stores that Fedex, UPS, and the Post office, have in shopping centers, Probably not so much the post office but you get my idea.