I dont miss physical format for music at all...
I use digital lossless files...
I could not keep a house for 10,000 albums.
Nor for 10,000 books...
Now a simple hard disk (double for security) contain all ...
The only thing i miss is paper books...
You cannot study very specialized books or deep one on screen... I do it because i do not have the choice...
Reading on screen is like typing on a keyboard, catastrophic for memory and understanding when you are young...I am old then it is less a problem even if i can notice it...
Writing cursive is fundamental neurological learning when young...
Reading a difficult book writing in it or underlining sentences or going back and ahead at will is fundamental for memory dynamics.
For music digital is paradise for my budget and my living space...