Think of the math this way for tire season; tires on rim's cost less TIME and $ to change over. If you plan to have said car/truck/suv longer than 3 years the steel wheels are paid for in the change over cost saving's in that time.
I will always run snow's on a dedicated set of wheels to provide better savings to me in all aspects, fuel, change over, life of tire, it all works out less cash out of pocket with good products in the end I've found.