"None of the neighbors know how much he got, only know how much he asked. A similar house 50m away is still up for sale for even higher price than than the listed price for mine. They can afford to sit on it for a while because the extra money they hope for covers the taxes and upkeep tenfold or more."

At least where I live, real estate sales are public and you can easily find the sale price at the county assessor's website.