http://www.businessinsider.com/martin-zweig-penthouse-listed-for-125m-2013-3
...we now know that late investor Martin Zweig's legendary penthouse apartment atop the Pierre in New York City will be listed for $125 million....He paid $21.5 million for the penthouse back in 1999.Interesting... It does seems long-term passive investing means putting money into a property(be it residential or investment) is a surefire way to riches. Of course, I never go into how he did it or what's his return on stocks are like. He might even have bought his house with a 80% loan which means the ROI is CRAZY. Just my opinion..