As long as you don't drive like a moron you will be fine with all season tires....I tend to drive like a moron in the snow so I opt for snow tires! Most have snow tires and then summer tires...makes driving more fun that way! IMO! I know living in PA...I could get away with all seasons...that's what I had on my wrx the first year I owned it and I had no problems.
i hear u, i live around the philly-bux area and im sure as long as i dont drive like a **** i can make it with all season. but ive been reading up on various forums that due to the drop in temp the winter tires make for better driving. do u have a dif set of wheels? i dont think ill go that far to spend some change on those... also i have about 5-6/32's on my current summer tires? u think i should keep em or do away with em?