re: CNC routers

I don’t have any recommendation for you Brian.
I do believe a CNC router would be a great addition to any shop.
I built my own a couple of years ago and fried it on the first try : due to an error in layout-)

As an investment, I would look at the potential direct and indirect revenue and see if it makes sense. The few woodworker that has one I have been following loves theirs and indicated it bring extra revenue.

Hopefully someone who owns one will chip in and give you a better opinion.