I drove my car all last Winter. I didn't do anything special to it though:
Blizzaks + 16" wheels + underbody washed frequently (maybe once a week or every other week).
I'm sure everyone purchased this car for one reason or another. For me, this is my only car. This is my daily driver that gets me to and from work with an 80mile commute. This is a car I want to ENJOY and not garage it for most of it's life.
There is nothing wrong at all with storing it to keep it perfect. But honestly, I would rather drive and enjoy the car as much as I can while I have it.
The car still looks brand new. The snow driving isn't bad at all with TC on and the blizzaks. And I got to enjoy a little low speed snow drifts here and there.
Just make sure you keep her washed of salt! The winter tires are all you need. (unless you don't mind driving a beater, and insuring more cars. Each way has it's benifits.. and for me, driving the FRS worked just fine)