I think the convenience alone makes it worth it. And, yes, there are lots of free books available for the Kindle. Personally, I always check my library first for the actual book (free!). If I really want to read it and cannot wait, then I'll get it on Kindle. It is great for when you travel as you don't have to lug around books. I have the Kindle app on my phone as well and will sometimes continue my book on my phone if I don't have my Kindle with me. My Kindle conveniently "syncs" to where I need to be in the book! Love it!!
“The Bible is worth all the other books which have ever been printed.”