I was enthusiastically commenting on a healthy niche market and then I used a metaphor point out that it's not just a hobby or a toy that these people are worki

I was enthusiastically commenting on a healthy niche market and then I used a metaphor point out that it's not just a hobby or a toy that these people are working on. It's a sophisticated tool that interfaces with the outside world much like CNC, which happens to be my area of interest.