A few hundred bucks for a hard drive that holds hundreds of titles isn’t a huge expense, especially compared to the rest of the a/v gear.
True, true. But it’s a consideration if one intends to host a really large digital movie collection completely uncompressed from retail. The Lord of the Rings Extended Edition UHD Blu-ray titles tip the scales at over 100GB each just for the movie track. The casual user would probably be looking at a 1TB disc just to hold those six movies. It can quickly become a non-trivial expense. Of course the seasoned experts build and maintain multi-terabyte RAID NAS units but that was kind of my point.
I definitely agree in principle that disc is superior but there are instances were, personally, all things considered, I would prefer to either stream, or store my own compressed file on the LAN. I often rip my own discs but rarely keep the retail bitrate on drive unless the movie is either very old or very important to me. To each their own of course. My only point is that streaming vs. retail is nuanced and subjective. Not always a clear advantage on either side 👍