Maybe because i don't keep my cars that long since I buy them new but I have always driven them all year round. The moment the temp goes above 32 deg i head to the carwash and even if I don't wash it i rinse the under carriage and keep the salt off until the next storm. Right now i'm too lazy to take a picture that would make you guys hate me for having the dirtiest Z on the planet.
On another note I have snow tires and love driving it on the snow, funny how you see 4 wheel drive SUV's on the side of the road stuck (CRV's specially)