Additional grip and safety are worth it, especially during snowy conditions. The cost of a set of winter tires has the potential of saving you much more, by helping avoid accidents due to slick winter driving conditions. Another way to look at it: Only half the year’s amount of miles you drive will be on each set. By having a designated winter (cold temperature) setup, you will increase the lifetime of your other (warm temperature) setup when it’s used during the warmer months.