Well, it depends. Last winter was fine. Two late snows of around 5" each, but hardly anything other than that. The winter before, however, was lots of little snows. Maybe 3/4" a couple times a week all winter. We're south enough from the lakes that we don't get much snow. But enough snow that either all seasons or snows should be had. I wouldn't do it on summer tires. If you're driving up to Michigan a lot, the snow is probably worse as you pass by Lake Michigan. So then get snows.