This is not as strong of a financial case as one might think. AAPL stock I bought less than 2 years ago is now worth more than double what I paid for it. If you don't want to have to pick a winner, the Nasdaq composite doubled in the past 2 years, and if you feel like the Nasdaq is too risky because of 2000 then the SP500 doubled in the past 5. All of the money that you spent up front on that house could have been invested elsewhere instead with better returns.