I live in the Washington DC area. What are thoughts on the need for 4WD. It does not snow that much, but when it does it is a mess because nobody handles it correctly. Additionally, we would be taking trips to WVA for skiing, hiking, etc... in the winter. Do you think this would justify the additional cost of 4WD? Or is a 2012 Explorer with FWD and good tires good enough. Thanks!