If I were him, the point is not a million dollars. That's trivial. It's not helping people find the treasure, that's also trivial. The point is all the entertainment to be had searching for the treasure. In fact if I had some money and time I might put together a game centered around finding the treasure. Imagine all the fun to be had and all the stories to be told about the treasure that was never found. In fact I would probably not even put any treasure out there. Just a tall tale for the ages.