I do hope Disney keeps physical media going in the US at least. I collect the Disney Animation and Pixar films on steelbook 4K from Best Buy. They always do a limited run during the initial home video release of a movie on special steelbook packaging, and I love the artwork on the steelbooks. Plus, playing 4K content from physical media is better than via streaming if you want the best audio and visual experience possible. But I know not everyone cares about that.
Also, there are all the bonus features that aren't usually available on
Disney+, like the making-of documentaries, deleted scenes, etc. Sometimes they are on D+, but not everything that the blu-ray/4K format brings.