This is a great question, and one that certainly highlights our collective obsession with technology. Like the OP, I too can count on one hand the amount of screens I had in my house as a child. Now? I literally would have to go around and count them... there's that many. Too many, actually.
I had to recount a couple times, forgetting about screens. I still forgot about the GBA, technically also a screen, but I haven't played on gameboy advance in years. My kids used mine and my wife's old ones when they were little. The battery life on those things is amazing by today's standards :)
Tech piles up. We have multiple old desktops I don't know what to do with. There's sensitive information on the HDDs, same as on all the old laptops. Two old desktops are still hooked up, running xp and windows NT. The XP one only turns on after a power failure (have to remember to turn it off again lol) and has a dead cmos battery. The NT one I still use for backups (backup drives attached to that one) and it's the only PC in the house that still has a disc drive! (both dvd and floppy disk)
Ahh, crap, another 2 screens in my 2 PSVR units!
Then there's the box of shame in the garage, 20 years worth of dead batteries. Even using rechargeable batteries as much as possible, it still piles up. Actually there are plenty dead rechargeable batteries in that box as well. Growing up, we had maybe a couple toys with batteries, now most things have them.
I've managed to stay clear of mobile phones since 2009 (my wife is always on hers), still read paper books and don't use a car nav system. 3 screens saved. However now back to the big tv for some more ghost of tsushima with a rechargeable controller, but wired headphones!