I get music and DVD's from thrift stores and my local eBay equivalent. So yeah there's definitely a cutoff.
You're right, the newer stuff is difficult if not impossible to get a physical copy of. I just don't bother. I go see a movie in theaters every now and again but I'm 500% done with modern streaming platforms.
That’s perfectly fine but when a monthly streaming charge is the same as a single DVD movie it’s poses a very different calculation for most households.
When you are looking to get content for children it becomes even harder and more expensive.
The library is also a great source of DVDs.
Technically illegal to rip from a library DVD and having movies in a library is very much as US thing.
Having movies in a library is definitely not a US only thing.
Here in my European country, most if not all libraries carry movies on DVD and Blu-Ray, including the very latest releases.
I'm pretty sure the same goes for most European countries.
DVDs of new movies are £10-15 in the UK still, shows are much more than that if they even get a DVD or a non-digital release to begin with.
Unless your content consumption is low it’s going to cost many multiples than what even paying for 2-3 streaming services does per year.