Let’s say you’re in the market for a new house, with a budget of, oh, $150 million.

What do you suppose the odds are that you’d rely solely on real estate web site Zillow for information about prospective properties—you know, ones with 21 bathrooms and a helipad and four-lane bowling alley and 40-seat movie theatre, that also include an “auto gallery” with $30 million worth of cars and—hey why not—a giant wall of candy?