@k3tan ha! Apparently you can replace the keyboards if needed with the right thinkpad model. Hopefully that'll let my three last until I find a suitable replacement...
@jb55 @k3tan That exact model unobtainable. But the more recent one is easy to get: https://www.amazon.ca/dp/B00F3U4TQS/
https://www.youtube.com/watch?v=vhAJKW_bhH4