1.) Snow insulates the ground; when it melts, it waters the grass and plants.
2.) While not ideal relative to bricks, snow can provide a fairly warm and wind-resistant shelter.
3.) Snow is fun! Skiing, snowshoeing, skijoring, sledding, etc. Those things require snow.
4.) I get to show off my excellent snow driving skills. (Albeit they are now somewhat diminished as I do not drive a snow-happy car.)
5.) Without snow, there would be no Minneapolis Snow Emergency