Most Helpful Girl
If you have it, you can. Make sure it is worth it though. By that I mean, shop around & get the best deal. Don't buy something just because you "love" it. Buy it because it's nice & it will look just as good next year as it does this year. Only folks with lots of $$$ can buy many coats year after year. Functional: make sure it is functional, warm, holds up in the weather, and does not have to be dry cleaned. Practical: does it go with everything you have? Or just about everything.
Then go for it!