OP you are discovering something I have noticed too. There is a mis-pricing in the late model used market. I have assumed it is because most people will pay much more for the new one than you will. And this supports the used prices.
In fact that is why we bought new, at a low price. Even after 3 years I still see used ones being asked for very close to what we paid. I know the key word is asked, but still.
My gut feeling from watching the prices over the past few years is that in a private sale you might indeed get in the low 50s for it. When you consider sales tax, you might still be out 15-20% depreciation.