Hey Todd, great writeup! I also prefer reading books, partly because of the higher content quality you mentioned, and also mostly because I can underline and comment on parts of the book I really like. I also have a Kindle and I've read several books on it, but the experience of reading on it is just not as nice as that of reading a paper book.
By the way, if you'd like to index your books, Goodreads can help with that. I have around 600 books and I never had the time to index them before I stumbled across Goodreads. I was lucky to discover it back in 2009 exactly at the time when I was migrating my books to a new bookshelf (and had fewer books than today), and I used it to create a list of all the books I own. Voila! I've been using it ever since. They have a nice mobile app with which you can just scan the barcode and add the book to your bookshelf without having to add the title, writer, etc. Goodreads is also great because you can read other people's genuine reviews, follow people whose reviews you like, discuss books and write your own reviews :) Hope this helps!