These days everyone uses smart phone's, Kindles, Nooks, iBooks, and whatever else I forgot to name. These are great devices that can hold allot, but I worry they will not last. I lost all my notes, highlights, and bookmarks by relying on a PDA Bible more than 10 years ago which cannot be read or used today, less connect to my Mac. I am hesitant to make the same mistake in this smart phone generation for fear that my notes, bookmarks, and books will not be readable on the computers and devices of 10 years into the future. None here really know if the iPhone, Nook, Kindle, or Android will even exist in 10 years. Years ago PDA's were red hot and sold like hotcakes, but today they are obsolete... Think about it.. Are electronic books worth it?