And it allows me to mix together video files from BDs and DVDs with files from other sources (a lot of which are commercially unavailable, such as an Ethiopian film which has never been released except on VHS and a version of The Umbrellas of Cherbourg which has been modified to fix a color error) into one seamless interface.
Obviously, though, this is just what works for me. If physical BDs are easier then by all means go for it.
More recently I discovered (Title, Year) is near enough to unique that I can name my rips that and Kodi is happy.
Files don't get scratched or lost.
You can play them on your PC.
You can get right to watching the film.
You can use your favorite player.
You can use smooth video project to interpolate frames. Especially helpful, since the vast majority of content is 24/30fps, yet the vast majority of displays are 60hz or more.
Like, I manage an ebook library, and I easily spend more time and effort managing said ebook library than I actually spend reading the ebooks. So I'm hesitant to bring myself into movie library management when I have a fairly robust physical storage medium already handy.