It supplements a 2017 Macbook Pro that's still overkill in 2022. Both have excellent battery life. If it wasn't for the nearly free upgrade I got in 2017, I'd probably still rock a 2012 model.
Now I also don't need dongles, nor a dedicated charger.
Maybe other manufacturers don't have long lifespans, I can't say, but Lenovos tend to hang around forever and are easy to sell when you want to upgrade.
See all the people commenting here about their 12 year old x220. I still use an 8 year old x250.
I could probably run it as a rudimentary media server if I didn't already have one, or palm it off to a young kid who doesn't care that it's a bit banged up, or use it as a machine of last resort. I don't use it like I use my M2 MacBook Air and would never suggest someone daily drive it unless they had no other choice, but I can't justify throwing it away because it's completely solid and still works. I could also probably get $100-150 out of it if I really wanted to sell it - if anyone can tell me of another 10 year old laptop with resell value like that I'd like to know.
I don't think I've owned a non-Apple laptop for more than 3 years, with the exception of a particularly long-lived Lenovo laptop I got in 2013. Every other one has had critical hardware die that I didn't feel inclined to replace mainly due to costs outweighing benefits. Except for a few weird years in the late 2010s, Apple makes stunningly reliable and long-lasting hardware in my experience.
I replaced its battery three times now, and the fracking awful magsafe 1 cable countless times, but other than that everything works, including the camera, and I took enough care of it that it's basically as good as new. The hinge is a bit weak indeed, but it's only noticeable when I'd like to almost close it without totally closing it. I think it's acceptable for a 12 year old computer. It runs about four hours under Linux on a 4680 mAh battery.
Also, current MacBooks used in corporate environments do not reach the second hand market because the SSD is no longer an independent component. They get shredded. Perfectly good barely old computers get shredded because one component is no longer separate.