I also am blessed with mitutoyo calipers. They are one of my most treasured tools. Must be 10-15yrs old.
Started giving me trouble once, but I took me apart, cleaned me and it's been years since.
Canopyboy had a nice set of digital calipers in his shop, I think he said were relatively cheap. They wer metal frame, and we're quite accurate and nice. Forget the brand. Maybe he will chime in.