Michael Dell and his wife Susan Dell purchased for $10.9 million Boston penthouse in 2016. Now, the luxurious property is heading to a sealed-bid auction with a minimum reserve price of $6.5 million. But that's what not the most interesting part. The couple never lived in this palatial Boston penthouse. In simple terms, its bespoke Christopher Peacock kitchen has never even been cooked in, according to LuxuryLaunches. The luxury home sits on the 59th floor of Millennium Tower in downtown Boston.