Do you regularly drive off road (not dirt roads, off road) or are you climbing mountains in the middle of snow storms? If not then you’re better off sticking with FWD.
Since you said you live in Colorado I’d just get a pair of winter tires and call it a day. Just remember, AWD is only good for acceleration, it won’t help you stop any quicker which is far more important in slick conditions. Good tires will do far more for you than AWD ever will.