CNC is not quite like that... pushing the button only part of the process it's not nearly that automated...
Well, I bet Jim's shop is (far) better than the CNC wood
shop I worked in, but prep & finish work does consume a ridiculous amount of time, the program needs be written & rewritten, the machines themselves require a lot
of setup and constant
maintenance, heck - even loading it can be tricky depending on the object (remember we're dealing with extremely fine tolerances), most CNC machines can cut only one face at a time so each unit is a multiple stage project, sometimes requiring different machines & setups for different aspects of the object being made *shrug*
Granted, the shop I worked in was a bit of an abomination, but generally speaking CNC doesn't save labor so much as provide exacting uniformity... usually... IF you know what yer doing lol, My old shop didn't, they thought they could save time by pushing the machines faster, resulting in "corduroy" passes and lots
of tedious finishwork - not something you can get away with at all with billet aluminum so... more time in the machine(s) and the progs that run them.
I'm ofc assuming that Jim's billet aluminum CNC setup and the somewhat primitive wood CNC I had to deal with are even vaguely similar, please correct me if I'm wrong