I don't know what your roads are like down there in the winter, but up here they're subjuct to a lot of salt and brime (really bad stuff for a car as far as corrosion goes). Here are my rotors after my first pad change at 60k miles off of my 2014 CX5....I would not use something like these for a second set of pads..cooling vents are virtually clogged with rust and corrosion.
Exactly, I buy new rotors every time. Brake jobs are few and far between so I don't waste my time.