If you are into collecting, that is. I am kind of triggered by the binary "physical vs. non-owned" because physical is not for everyone, if I was dead set on paying and the media was not available DRMless, I would rather buy a digital copy plus pirate a DRMless one corresponding to it. Buying a disk only to throw it out after ripping is wasteful. If you keep them, they take up too much space and are too inconvenient to use compared to a few external drives.