To each their own and there's lots of good advice on here. I drove (not daily, but regularly) an F550 dually dump truck for a few years until I converted it into a dedicated plow truck. My take-aways: 1) If you have the luxury of waiting out the massive snow dumps that happen rarely, stick with your current tires and get some chains; 2) If you're primary use of the truck in the winter is a grocery-getter, as hinted at, maybe a Subaru is a good 2nd vehicle; alternatively (assuming OP's truck is 4WD), get a set of bad-a** aggressive chains for the front tires....that's where your weight is (if not towing) and you'll only need to chain up for the few times that you'll face the combo of "have to go" and "bad roads"; 3) FWIW, having driven multiple duallies since 1974, there's lots of good mud/highway/AT/Snow (even a few good combo) tires out there, but tires are not going to offset the decided tendency of a dually to act like a cow on ice when the roads are slippery.
