The Kindle portion of an Amazon Prime membership can be a cost-effective choice if it is used often enough to make up the subscription cost of $99, as of 2015. Part of the Amazon Prime package includes the Kindle Lending Library and Kindle First offerings.
In addition to the money saved on shipping, the value of the Kindle Lending Library and Kindle First programs are calculated by US News to be between $120 to $240, depending on the value of the book being borrowed or received for free. The Kindle Lending Library allows members of Amazon Prime to borrow two free books every month from Amazon's catalog of book titles. The Kindle First program gives members the option of receiving one free pre-release book on a monthly basis.