So a client said one word and now your whole pricing plan changed? One person's opinion doesn't mean you were screwing up for years, maybe she's just cheap lol.

That line about spotting a worn cutter tooth you woulda missed really hits home. I used to figure cameras on a machine were just something the big shops wasted money on, seemed like one more screen to stare at when you already got enough going on. Then a buddy talked me into trying one on my old mill and it caught a chip buildup I flat out never woulda seen from where I sit. Cost me almost nothing compared to what a busted insert woulda done to the workpiece. So yeah, I was wrong about it being overkill, if it saves you one bad part it already earned its keep. For the price of a cheap wireless setup, skipping one breakdown pays for the whole thing and then some.

Been there man, learned the hard way that a cheap rental can turn a one day pour into a week long nightmare. My first time running one I was so clueless I just grabbed the handles and went to town, didnt even think to check if the thing was set up right. Halfway across the slab it started bouncing like a lawnmower with a bent blade and I stood there thinking that was just how they worked. Ended up with a floor that looked like a golf course and a yard guy who swore up and down it was fine when it left. Now I do a quick spin of the rotor and check for play before I even sign the paperwork. Saves me a lot of grief and blade money.