I’ve been thinking about this a lot lately and pre-mourning the loss of “obsolete” technology that I will inevitably have to deal with in the future as it becomes more and more difficult to obtain older technology to replace the existing items once they reach the end of their life. And I weep for the future. 
I will not ever, under any circumstances, live in a “smart” home. I wouldn’t even accept if they offered me free rent to do so. Not interested, at all. This includes all electronics, appliances, etc that are internet-connected, with the single exception of computers. How much longer is it going to be before it becomes impossible to find a new refrigerator or a washing machine or even a toaster that isn’t connected to the internet? Sure, I’ll be able to find something secondhand but built-in obsolescence will ensure my “new” appliance will only have a limited life before it ceases being useful too.
TVs are already out for me. Don’t really see the point in getting a secondhand CRT TV (the only kind I have ever owned) since it’s already been years since any new ones have been manufactured so a secondhand one isn’t going to last very long. So I watch DVDs on my laptop instead, using external DVD drives since it’s damn near impossible to get a built-in DVD drive on a laptop these days either. I also back things up externally - I don’t trust anything to the cloud. How much longer will that be possible?
I will never ever part with my DVD collection as it is vastly superior to anything on streaming services for the reasons already mentioned (consistent quality, you always own it so they can never take it away from you, allows access to older or more obscure films that are unlikely to ever be available on streaming services, etc). The problem is, when my external DVD drives eventually wear out, how much longer will new ones be readily available? Same with MP3 players and wired headphones, which is as “advanced” as I am willing to go with music technology.
If I can help it, I also have no intention of ever owning a smartphone. I have an older “feature” phone (it doesn’t need to be smart - it has features!
). How much longer will new ones be available, or supported on cellular networks? If I am ever forced off them, I would seriously consider living without a phone at all - worked for me back in the 20th century.
However, doing so would involve an enormous amount of compromise in terms of being contactable, dealing with security protocols on internet banking, etc.
I eventually realised that books are the only thing I know I will always have access to in the future. Real books, made of dead trees, not subject to annoying updates or obsolescence, always readily available to read anywhere and anytime. And even if there wasn’t a single new book printed ever again, there’s already billions of them out there on everything imaginable, vastly more than all of us could collectively read in our lifetimes. The book is the real tech of the future! I am never, ever, ever giving up my physical library. One day it will likely be the only form of analog tech left. 