I see new formats erasing the old having one thing in common, convenience. The cd had remote control and track skipping. It was also novel with clean playback and tight bass for the masses.
Streaming has unlimited access to new sound/songs, radio and made-for-me playlists. It was novel too.
There seems to be a resurgence when it’s recognized that the previous format can give superior sound at a lower price point and it has become novel in itself. Those who can afford the best don’t really fuel the comeback. It’s the kids.