There are probably several dozen of us reading this thread who are still using ancient Model Ms. I have a Greenock-made UK model (built 1988-11-15) which feels indestructible. The Greenock IBM factory closed down years ago, sadly, so there won't be any more coming from there. The factory has been the site of some interesting urban exploration. [1][2]
[1] https://www.28dayslater.co.uk/threads/ibm-greenock-dec-2008....