Green Dot (GDOT 7.62%), Simon Properties Group (SPG 0.31%), and Heath Care REIT (WELL -2.68%) have been great stocks to own recently, but is it time to reevaluate their long-term value? In this segment from The Motley Fool's everything-financials show, Where the Money Is, analysts Matt Koppenheffer and David Hanson tell viewers why they think these stocks are scary to own.