Good points Jeff,
I had the same problem living in Alaska, and buying a car in the fall. I look at winter as a great time to do mods, and customize. Sure you have a payment but everyone gets you closer to being an owner.
You will still have those rare days when you will drive it before spring, and time to work on it. The car will show low miles for a long time because of winter storage.

Chris (mopar2ya) is right... no perfect answer. I waited 2+ years and didnt want to bet on what next year would bring.