I recently heard on a radio news broadcast that the retailer Best Buy was discontinuing the sale of DVDs because more and more people are watching movies via streaming services rather than on DVDs.
My introduction to streaming came about when my upstairs neighbors, Harry and Lilia, would invite me to their apartment numerous times for dinner, conversation, and the use of their laptop computers.
Harry or Lilia, while sitting on the living room couch, remote in hand, would skim through the menu offerings on Netflix, reading the plot summaries before deciding on what to watch.
From what I could see, streaming doesn't offer the kinds of features found on a DVD like audio commentaries, scene selection, behind-the-scenes mini-docs, blooper clips, trailers, etc. (Good reasons not to buy bootleg copies because they lack these important features.)
Being old school, I prefer to have the physical disc in hand. As the novelist Larry Duplechan points out in his memoir/film history book, Movies That Made Me Gay (Team Angelica Publishing, 2023, paperback), the DVD is a good backup because "you can't trust streaming services to keep your favorite old movies posted."