LoL point for calibre.. your library will never get anything but better over time as you clean up the metadata.
physical library never gets any thing but worse as people use the books and forget to bring them back or re-shelves them in the wrong places.
you left looking at the database going "it says I have this book!! where TF is it!!!! I can't find it!!!!"
calibre it says you have the book and you double click on the entry and it opens the book
