I swap my body panels more often than my rotors (thanks, salt). You should not be replacing the rotors on every pad replacement even in salty conditions.
You need to refinish them on every pad change, and that is the same cost as a new rotor. You can sometimes get by with putting pads on, but if you measure the rotors they are likely out of spec. (not many home shops have a proper micrometer to measure with)
I swap my body panels more often than my rotors (thanks, salt). You should not be replacing the rotors on every pad replacement even in salty conditions.
You need to refinish them on every pad change, and that is the same cost as a new rotor. You can sometimes get by with putting pads on, but if you measure the rotors they are likely out of spec. (not many home shops have a proper micrometer to measure with)