The coat conundrum

Ok friends, I need your honest opinions. While I was out finishing up my Christmas shopping today,* I slipped a bit and bought myself something as well. It's a green pea coat (ha ha, green pea) from Old Navy. I was drawn to it and noticed the sign on the rack it was hanging on said 50% off outerwear. I checked the price tag: $78. I knew if my math was serving me properly, that meant $39 before tax and therefore totally doable and worth it.

Of course, as always happens at Old Navy, you get to the register and find no, that coat isn't 50% off, the coats on the rack next to it are or the plaid ones are but not the solid color ones. Bastards at Old Navy. If you weren't owned by my beloved, The Gap, I would boycott you. I, of course, panicked at the cash register and bought it with the idea I'd return it if my conscience told me.

Well, my conscience is taking a bit of a vacation, so this is where you come in.

Before you offer your advice, let me preface it with the following caveats:
1. Green is my absolute most favorite color in the world. And this coat is a very good green.
2. I absolutely don't need another coat. I have a beautiful seven-year-old charcoal colored pea coat that's not ready for retirement. Not to mention my brown-and-white tweed, a leather coat, a fleece and a North Face jacket.
3. The green coat was the only one in the rack. If I take it back hoping for a future sale, It will be gone.

Behold, the green pea coat:

*Yes, I really am done with my Christmas shopping, save one gift for my parents. By the way, beware the traffic out there while you're finishing your holiday errands. There are some really, really bad/inconsiderate drivers. Don't fall victim to one of them. Or become one of them.