Buying/storing disks requires a lot of space and hardware many people do not own anymore though, plus if you want to rip them to a personal media server you still need to break the DRM which depending on the country can be illegal
Piracy still not required. More convenient, yes. But not required.
People will pirate. Whether or not it's right or wrong is irrelevant. even if it's not "That much harder to X, Y, Z", people will do what is easiest.
In the case of DVDs, you can just back them up by imaging the DVD with all parts intact—no deCSS necessary. This is partially what made DMCA anticircumvention legislation so braindead. The people hardest hit were those whose behavior was otherwise ethical and legal. The folks selling burned/counterfeit copies at the flea market or in the street, on the other hand, were undeterred, because (a) DMCA didn't make anything impossible—it just made a new class of things illegal—but the thing the bootleggers were doing (copyright infringement) was _already_ illegal! and (b) system used on DVDs restricts playback; it's not a copy protection system—because (again) if you want to copy a DVD, you can: you just make sure to copy the "DRM" parts, too.
https://www.bhphotovideo.com/c/product/924197-REG/case_logic...
or
https://www.amazon.com/Snap-N-Store-Double-Storage-6-125-SNS...
> .. and hardware many people do not own anymore
https://www.amazon.com/Blu-Ray-Player-External-Laptop-Burner...
~3 months of Netflix standard gets you storage for 100s of discs plus a drive to play them on.
And piracy isn't illegal? I know which one is definitely more legal and more ethical.