To all the people from Toronto and Winnipeg recommending to buy snow tires... please read carefully and try to put things in context. As far as i can see the original question was posted by someone from Surrey, BC. Being in Richmond, BC myself, let me give you some background info. It is quite warm in winter out here on the beautiful west coast! It almost never snows here. Last winter was unusually cold when snow stayed on the ground for whole of 2 weeks. But we know that every year we have consistently few days of snow when traffic grinds to a complete stop and everyone tries to remember how they dealt with it a year ago. Some of us even own snow shovels (wow). Most people can make arrangements and avoid travel for these 2-3 strange days, i just work from home.
Having said that I owned 2 sets of snow tires in the past, mainly because of occasional sky trips. both sets got very little use, outlived the cars that they were for, did not fit the new car and i ended up selling them on craigslist for fraction of what i paid. Not a wise investment, in my opinion.
I am in the same boat at the moment, looking for a new set of tires. Not because mine i worn, i just hate the OEM Potenza RE92 that came with my car. What I am looking for is a good all season tire that handles rain and dry without impairing comfort and handling. This tire should also be OK, just better then average, on the snow and ice that we get a few times a year.
I narrowed my search to a few high end Michelin products (ex. Primacy MXV4), just trying to see it there are cheaper option, but it does not look good so far. Nokian WRG2 are very, very expensive and i cannot justify driving all year on something that is basically snow tire with hardened compound just for those 1-2 weeks of snow. I am also pretty sure that they will wear out very fast in warm climate.