Google knows searching and downloading, independent booksellers know how to sell a book. Now Google is going to act like a wholesaler to independent bookstores, offering eBooks that can be read on any device. Independent booksellers will be the ones to recommend particular books. Check out this New York Times article on how it will work.
Of course, this means that people still have to be drawn into the bookstores and get into the habit of trusting the recommendations of booksellers who are known for hand selling books.