600k books and audiobooks for a $10 a month subscription.Why don't they bundle this in with prime?http://thenextweb.com/media/2014/07/18/amazon-announces-kindle-unlimited-can-eat-subscription-reading-service-9-99-month/?%20announces%20Kindle%20Unlimited,%20an%20all-you-can-eat%20subscription%20reading%20service%20for%20$9.99%20a%20month&%20Publisher&.co&awesm=tnw.to_s3Lkbhttps://www.amazon.com/Kindle-eBooks/b?_encoding=UTF8&*Version*=1&*entries*=0&ie=UTF8&node=9578129011&pfShowFeatures=