I live in CT where there is usually plenty of snow/ice in the winter. I too had concerns about driving in the snow, but the winter tires performed very well. Some members don't bother with winter tires and say they don't have any problems. I wanted to err on the side of caution, I used to have other rear wheel vehicles and driving was a nightmare. I run the 16's instead of the 17's because they perform better than the wider 17's. I also carry 2 50lb. bags of sand in the trunk. You should buy 4 tires if you choose to go this way.
SEMPER FI 2/3 Comm
Founder of the Four Pedal Club