Streaming VS physical?

I see so many people on this subreddit that have these huge rooms with tens of thousands of dollars worth of equipment but don't bother to get 4k or 1080p Blu-rays and just use streaming services...

I would even argue lossless audio and the extra video bitrate would sometimes make more of a difference in the overall experience than actually upgrading some of your equipment, and it's not such a big investment as some equipment would be...

The difference in bass, dynamic range and the picture quality is something I easily noticed over streaming, even with the more basic setups I had in the past

on top of the other benefits of physical media like permanent ownership, special features, cool packaging and memorabilia etc etc

why not get the most out of this already very expensive hobby?