Followup with him in the fall, have him show you his two settlement statements (when he bought, plus survey costs, and when he sold) and let us know how that theory worked out for him. Hint: don't take his word for it.
I've known people to make money on boat ownership. But then I've known people to get wealthy on penny stocks. Known people to win lotteries and known people to win at slot machines. It can happen, but just don't go in expecting it to happen.