@Tareq Salaita I always diversify all my bets between stocks, bonds, cash, alternatives (bitcoin, real estate, hedge funds) etc. I am 27 years old working in hedge fund industry so my view might be a bit titled to financial market rather than real estate. I just started my real estate journey a couple of months back and now currently in 28 units in Houston.
I am trying to allocate 50/40/5/5, 50% to stocks (mostly index funds) but well balanced across geography and sectors. I don't want to over bet on particular sector or particular country (Always diversify). You do not want to be over exposed to tech when there is a tech bubble. I always make sure most of my funds are index and under 0.5% expense ratio. 40% being in real estate (mostly multi-family apartment for now). 5% in cash. 5% in either gold, bitcoin or individual stocks or options (whatever I feel like).
Why do I chose 50% in stocks? It is passive. It has the last 15 years average return of 9%. Everyone will say their COC is better. However, you will have to think on entirely passive part where you buy and forget about it.
However, as I get older, I will be sliding my scale of stocks to bonds and more conservative asset classes.