I'm in Michigan, I lived on a dirt road for 10 years before it was paved. Around here dirt roads are worse the the salt.
I work on plenty of dirt road vehicles and I'll never buy a vehicle that lived on a dirt road.
Everytime it rains that dirt road turns to mud and people that live on dirt roads have no choice but to drive it. The paint is fucked up on those vehicles, the interiors are full of dirt, they are a dusty mess under the hood.
I have a 7.3 truck here that lived on a dirt road, the rubber turbo inlet hose split so it was sucking dusty air, it dusted the engine and it's fucked. Dirt roads suck.