Books are not made for furniture, but there is nothing else that so beautifully furnishes a house. — Henry Ward Beecher
I am one of the few people who still read actual books. I have a hard time letting go of them, too, so I understand the need for walls lined with bookshelves. Whether or not you sort your books by color, a floor-to-ceiling built-in is my favorite flavor. Here are a few from around the web that inspire me:
My opinion on color-sorting: If your collection warrants shelving of this scale, then you’re better off organizing library-style by genre, subject, and alphabetically by author. Smaller collections of books, e.g. one or two bookcases, can be arranged by color without making impossible to find something.