That is for the writer / service manager/ and the customer to come up with a plan. The strange part is lately customers have ASKED for new rotors instead of cutting them. The whole Covid deal with people not driving as much they leave their cars sitting out in the driveway for a week or so the rotors don't last long here in the rust belt. If I can get them to clean up in 1 or 2 passes I would rather cut them, but if it takes 3 or 4 passes then it eats into my flat-rate time and I'm loosing money so I can save the customer a few bucks

Gus

Your money is loose? Really?

Wonder how many warped rotors are due to poor installation and bad driving habits? Brake dragging by people who drive with both feet is still a thing.

See all these idiots with nobody behind them who drive all gas right up to the last moment at red lights and stop unnecessarily harder than they need to. I see a light change, or about to change, up the street and if there is nobody behind me I roll off the throttle and coast. Saves on brakes, and if done right sometimes (in rural areas or low traffic times) the light will change again and you don't have to come to a complete stop.

Also see a lot of newer vehicles with excessive brake dust on their wheels. Must be some aggressive brake pads or hard drivers?

Undersized brakes with aggressive pad compound to save a few pounds for CAFE.

Our Public Works has piles like this. I've never asked if they ever turn any and only scrap when they are beyond that.

With nearly 30 years in the business, I can confidently say most guys don't know how to turn rotors. That's where the myth that turning rotors let's them warp came from.

They turn rotors wobbly, you won't notice it at first but eventually the pads try to wear the rotors straight again and the crookedness shows up.
As to Gus' pictures , here in the Salt belt, rotors tend to rust away before getting wrapped. By the time you turn out all the rust pits, the rotors are under spec.

I have my own lathe, I turn my own rotors and drums.

A12 has it. I've noticed with brake shops (Brake Check, etc) have lifetime warranties for their brake jobs but are replacing the whole brake system from firewall back. Coupla years ago, friend took his Chrysler min-van to Midas for brakes. Midas offered the lifetime warranty, so he took it. Replaced the entire brake system, even the master cyl. Lawyers-ugh.

And 10 years ago, the Midas lifetime warranty cost 2x what the original brake repair cost, they actually charged you double up front for that warranty. Read the warranty price quote one time, it will shock you with the stuff they have gotten away with the last 50 or how ever many years they have been doing it..

The last 3 vehicles I've built get the entire brake system replaced, including the master. That last one I didn't replace the master on, the master failed about 2 months later. Why take the chance anymore. The new stuff is of questionable quality right out of the box, who knows what the "last guy" bought, and when it was bought? Cover your butt, the stuff that was new out of the box reduces your liability.