Although I really like buying books from Amazon, nothing really beats going into a real bookstore and browsing the near-endless rows of novels, biographies, tomes, etc. And the fact that you can pick up a book and give it a look also helps. Sure, Amazon's got the "Look Inside!" feature, but not for every single book they sell.

Another thing that's better about going shopping for books at a brick and mortar store is the exercise and the lack of shipping costs (unless you drive a car or take public transport, that is ;) ).