One of the perennial destinations at NAMM is the both of Big City Music. They have quite a collection of both vintage electronic musical instruments and contemporary analog electronics.
The highlight this year was a live performance with a Dewanatron by Leon Dewan:
It was hard to hear it well in the hall environment, unfortunately.
I also was looking closely at some of the analog modular offerings:
Above as a system primarily with Kilpatrick Audio modules for both sound and control. Below is a case full of Metasonix modules, distinctive with their protruding vacuum tubs and yellow color.
Big City announced a new metasonix module, the Thyratron VCO. I was able to listen to it and other modules (VCF, Waveshaper, etc.). Metasonix modules look a bit intense (and their description text can be a bit menacing), but the modules themselves had an unexpectedly subtle sound. That is, until you pick just the right modulation, then it gets more interesting. The wave shaper remains my favorite of theirs.