Yeah, "nobody used them" in casual speech just means very few people. Obviously since they were made some people bought and used them. But the numbers were not worth writing home about -- and one would be hard-pressed to see random people using them in the wild (exceptions by field workers, some kinds of researchers, etc, mostly professional/factory/etc uses).
And my response only pertained to them having only seen them in one place and how that might be selection bias. While not common, they were certainly in use outside of research labs.
Motion did pretty well with them and made great hardware.
Yeah, "nobody used them" in casual speech just means very few people. Obviously since they were made some people bought and used them. But the numbers were not worth writing home about -- and one would be hard-pressed to see random people using them in the wild (exceptions by field workers, some kinds of researchers, etc, mostly professional/factory/etc uses).