I changed to my stock tires for winter but left my chrome rims on....
1.) Chrome is no aluminum, but its more protected that polished rims
2.) I'm the kind of guy who cares for his rims deeply and tries to remember to polish them once a week
3.) I don't drive much in winter in my own car (i become a hermit in winter and only drive to and from work/school)
4.) They look oh so classy in the snow! I'll take my car out into my yard in the dead of winter and take some artsy pictures, believe me it will look GOOD!