Pro tip: If you still have a local record store with a used section, you can probably buy blurays and dvds super cheap. They’re typically 25-50% the price of renting on Amazon/Apple, or buying used media on Amazon.
Also, it’s actually easier to bypass the DRM crap than not, so they’ll continue to play in full resolution moving forward.
At that point, why not just pirate and cut out the used disk middleman since the original creators aren't seeing any money from the purchase at that point anyway?
Borrowing from libraries sort of gives money to the creators, since the libraries seem to buy + dump lots of copies. Buying used gives the libraries money, since they dump the copies at the used store.
Alternatively, be like me, and have a $100 budget for N ~= 20 BluRays/40 DVDs. 2-3 can be new purchases if used isn't in stock.
Lip service to the law, in theory purchasing used discs supports original sales of new discs, and I at least sometimes prefer the discovery experience of physical browsing.
Also, it’s actually easier to bypass the DRM crap than not, so they’ll continue to play in full resolution moving forward.