There is nothing smarter than doing some comparison shopping, however. Some companies will always charge you list price, while others strive to be at the top by offering ultra-competitive pricing. More often than not, these price competitive stores are your best bet. They have a lot less overhead than a brick and mortar store, so they are able to pass the savings along to you.
One of the best options to buy audio books is Amazon.com. They are widely known for their regular book selection, and they are constantly expanding their audio selection as well. In addition to having a lot to choose from, they have rock bottom prices. It's always a great feeling to see the list price, and then to see how much you are going to save!
Another choice is Audible.com. This is a site that has grown in popularity, partially because of their audio club options. If you are a frequent audio book listener, this is a great choice in where to buy audio books. You can save a lot of money on each title you buy.
One old stand by is shopping through used selections on a site like eBay. Keep in mind that you need to be sure you're dealing with a reputable seller before completing any transactions.
Source: http://EzineArticles.com/?expert=Richard_Larkin