You're in the market for something mansionesque, and you're looking for a major deal—it being a buyer's market, after all. Rest assured, the listing agent is not cooing compliments behind your back. One veteran broker from Fairfield County, CT, says high-end bidders—especially ones that are young, cocky and clueless to the pride that comes with home ownership—are ruthless and unrealistic. "They want to draw blood from the veins of the seller," Barbara Schmerzler, a lead broker with U.S. Homefinders. "They are waiting for the bottom of the market, which has already passed them by."