I don't much like posting about prices, but this smells like a scam. Usually the smelly stuff happens on EBay. I would call them to get a feel for the person at the other end. Maybe it's one of those moments where an angry wife is dumping ex hubby's toy.

If they tell you they are actually a missionary who suddenly saw the light and are eliminating all earthly possessions, I'd take a walk real quickly.
On the other hand, if it just happens to be for real, you got the deal of the century.