I drove a Mustang GT all year in S.W. Michigan. I drive my current car all year here in NoVa (admittedly, very little snow) too. Being below freezing means nothing.I've considered doing just that. In the end it's a compromise - on days where it's above freezing and there's no salt on the road, I'll take it out for a spin.
This is reason #1 why I park it for the winter. Either I'll keep it a long time and want it to stay clean and rust free as long as possible, or I'll need to sell and want it to stay clean and rust free as long as possible. Reason #2 is probably a combination of being both lazy and a neat freak... I can't stand to see it dirty and less opportunities to wash it the way I want to in the winter.Here around Cleveland the weather is just right for salt use in the winter and having grown up here and lived 47 of my 54 years here, I've seen first hand what salt and moisture will do to a car. I don't care how many times you wash it, there cracks and crevices that the salt and moisture will get into and you can never get it out completely. If you want your car to look pristine and remain rust free, your only choice is to park it every winter.
Some of the local cities around here have switched over to a brine solution and it's even worse than traditional rock salt.
That's right where we were thinking so it's good to hear that's a reasonable choice. Went to Phoenix for 4th of July a couple years ago... when you get back to the hotel at midnight and the car thermometer still says it's 104F out, yikes. Wife never wants to see a snowflake again so Flagstaff's out. But we went to Sedona and loved it.Only advise look at central AZ . Snow in the north and hot as heck in the south . I'm right in the middle . I mean right in the middle of the state . Check out the Sedona /Verde Valley area .