Christopher Nolan says that there is a danger in having content only exist in a streaming format, that physical media is the only way to hedge against its disappearance from public access in the future.
I've long advocated for owning music in particular (as much as ownership exists these days) in part from the financial standpoint of paying into a collection that isn't anchored to a streaming platform. Hadn't thought about the existential issue of streaming-only content
https://www.msn.com/en-us/movies/news/christopher-nolan-says-streaming-only-content-is-a-danger-and-can-get-taken-down-guillermo-del-toro-calls-owning-physical-media-a-responsibility/ar-AA1kfSfB