My dealer told me that Maserati will pay for half of the tire cost if I opt to get winter tires. I am in NC and barring this year, winters are mild. I haven't had the need to purchase dedicated winter tires. I tried to see if they would provide all season and the answer was no. I have the 20" Uranos. They quoted $1800 for 4 tires installed. My half would be $900. It seems a no brainer to get them? Can the winter tires be used throughout the year or would I have to keep swapping them every year? In our climate, would all season be a better choice, even though they won't pay for them?