I suspect it also depends upon the type of environment that the car is mainly used in. Certainly, coastal areas tend to cause more corrosion on any cars and also the liberal use of salt in the winter does not help.
I am surprised that with the type of mileage and age of car, that it has got that bad that it needs discs and pads. I would want to see for myself before committing to that type of expenditure.
Neil
