You have a good point. Dave.

I wanted to occupy the smallest amount of instrument space consistent with a readable display.  Until the new OLED type display became available, I just was not happy about the quality.  The old one was readable under most lighten and viewing conditions but not all.  This one is much, much better.

At the moment, I had planned to package it for the 2 1/4" dia standard instrument hole.  The trouble is I have found no source of reasonably priced instrument cases.  I did find a few metal ones with minor flaws and even those were $25 apiece on sale.

I know somebody much make them - plastic would undoubtedly be cheaper.  But, the instrument can be mounted in a black plastic box as far as that goes.

I scratch my head a bit more over this issue.