I imagine there might be some 1&2 family guys who have never used a metal box. I sure don't see them much in residential. Yup, some day you will be telling your young guys how it was way back in the olden days when you actually had to put locknuts on Romex connectors and tighten 2 screws. Then you will get the blank stare and the question "what was this Romex stuff"?
