Think your home value is down since 2005? Per estimates, this 16BR/35BA, 55,000 sqft home on 18 acres dropped a not-so-cool $23 million the past year, to a still not-to-be-sneezed-at $308,058,000. Think of the monthly payments! Since you mentioned it… With 20% down and a 30-year 5% mortgage, your monthly payment would run you $1,323,000/month. You might even have to take a second job.