I part exchanged my 3GS and 5S. My 6S is still my backup phone (or to lend to visitors as it has a PAYG data sim in it, which for historical reasons is totally free to use).
My first gen iPad mini is nailed to a wall and used as a remote controller. Well, that was the plan, but in reality it spends 95% of its life turned off doing nothing 🙂
I wanted to retire my 6S and use my 11 as the backup phone, but the screen is smashed and it's not worth repairing. I now have the 17.
My first Macbook - 15" 2013 MBP - runs Ubuntu and also acts as a time-machine destination.
My 2020 Intel MBA was given to my partner and, coincidentally, is going in to Apple today for a new battery, as the current one is so dead the machine is unusable.
I currently have the 14" M4 MBP.
So, thrown away? None, although I'm not sure why I've not chucked the broken-screen iPhone 11 into the bin (iPhone 17 bought last October).