It's a 15" 4:3 model with IPS, Pentium M and my all-time favorite keyboard, so it's not easy to let go. Currently, it works, but the GPU is dying -- a pity, because I would still need that machine to work in WinXP and Avid Pro Tools about twice a year. I can stubbornly use it with Tiny Core Linux in framebuffer mode for lighter tasks and experimentation, though.
I bought that machine in around 2014 for 20€. Really fun to think about that, considering that I used it for years to do pretty much everything that another radio producer had to buy a shiny Macbook Pro for. :)
Probably because of grandparents' influence, I like using all kinds of gear until it stops working or seems irrepairable. I'm not a coder by profession, so my computational needs are really modest. Currently, I am making efforts to use a Dell Mini 9 as a daily driver in framebuffer mode. Interesting macine: 8.9" screen, Intel Atom, but fanless build, thus spookily quiet. Saw it in mint condition for about 20€ a few years ago, and, having recently been inspired by Joey Hess' endeavours [2, 3], I just couldn't resist. I added an anti-glare coating, and now it's actually a joy to use and carry along, especially considering that it is around the size of an A5 writing pad.
I guess I'm just one of those guys who likes to build himself a world where well-chosen tools could live forever. Not anti-progress, but old tools do have a lot of unused potential IMO. (What are the chisels, jack planes and scythes of computer hardware?) It is quite possible that climate warming will be a huge eye-opener for contemporary societies in this regard.
On the other hand: not quite sure, but I think it was Alan Kay who said that by using yesterday's technologies, you're also stuck to solving yesterday's problems. Even those can still be interesting, though.
2: Link from 2012: https://usesthis.com/interviews/joey.hess/
3: https://joeyh.name/blog/entry/xmonad_layouts_for_netbooks/