Brakes

I have a 2002 Ford F250 4X4 truck. I pull a light weight 5th wheel about 1000 miles a year. I have replaced the brakes 4x since 2005. Last month I relplaced both front and back. The dealership tells me I need to drive it once a week, which I already do. I live in northern Michigan in a snow belt. They also told me the salt used on the road destroys the roters. What I don’t get is why doesn’t it happen to everyone here who has a F250 Truck. Help

Was that a rotor and pad replacement? It could be bad rotors eating up your pads. If rotors were done also I would look at sticking calipers.