I’m going to weasel on this, forgive me.
I am positive that many companies would love to get rid of DVDs because they HATE sharing. IE if I have a DVD, and like it, I can lend it to a friend, who watches it, rather than paying $4 or so to digitally rent a copy, or selling a digital copy for at or near “full price” of a DVD.
I do think that as we move forward, fewer and fewer DVDs will be produced. The renaissance where you could find ever more obscure old shows and movies on DVD is largely spent IMHO, and even previously released movies are becoming harder to find, especially if it only got a limited release on B-ray for example.
What is going to be gone first is cheap DVDs. For a long while, popular or pop movies would be full price with a small markdown, then a long period on steep markdown, then as things moved on, around $10 forever.
But, while that is still the case for some, it seems that there just aren’t any more printings of the more niche stuff. So once it’s gone, it’s just GONE. You’ll see it on Amazon at $30+ for a New In Box version of an old printing, because that’s all there is.
So yeah, we’ll still have it for a while (I picked 2030) but it’ll become increasingly only the most popular and most recent stuff.
A not insignificant part of the problem is that I (and probably many here) still put an emphasis on watching stuff on TVs (web enabled or not) or at least big monitors, which is fine, and easier on my eyes, but plenty of younger folks are perfectly happy watching whatever they want on their phones / tablets / other lightweight portable media on their terms.
I appreciate the ability to do so, but I can barely stand to watch a movie on a plane on my 10 inch tablet - a 6 inch (or so) phone would be hard no for me, but I realize I’m not the target.