Sorry for slow response, was out camping and didn't have any Internet.
I was told $200/wheel for the black version, I would think they would be usable in the winter. They should be clear coated & as long as you can keep any salt off they should hold up well. I live in MN and have an Acura for the winter and run a cheap painted alum wheel & they have held up well over the last 3 winters with limited washing. Not sure if Adam's has anything to protect them in the winter, but might be worth a note to Dylan. I picked up the PC kit and the results are amazing, I had been a big Wizard's user for years & won't be pulling any of their product back out of the trash!
Good luck with the wheel selection, post some pics when you pick them up.