the rotors on the last 4 vehicles I've had were not machinable. Really wasn't an issue since anymore brake pads and rotors have gone well past 100K before service was needed. Truck has 250K miles with original rotors and original pads. Pads still have 25% or more left before they hit the wear limit.
And cost of turning the rotors was more than new OEM rotors anyway.
This is a non-issue. Most cars now do not have machinable rotors anymore just to get as close to minimum weight as they can.
On top of that, hybrids don't wear the brakes as much as non-hybrids. my CR-Z pads and rotors were only 50% through their service life after 130,000 miles. Teslas are having issues with the brake pads failing due to corroded backing plates while they still have 90% left on the pads.
with the advent of much larger wheels, which allows much larger rotors, and improvements in brake pad material and rotor material, It's almost a "lifetime" part. GM 3/4 and 1 ton trucks have regularly been going 250K + miles on stock brake pads and rotors since early 2000. My son's 2004.5 has almost 250K miles and the pads are maybe 75% worn down to the wear limit. And that's with towing close to 10,000 lbs about 1/2 the time. And the rotors have a very minor grove showing wear. My 97 MB had over 100K miles on the pads and rotors and look like they will easily go another 100K miles.