Quote from PAPA ROACH:
All joking aside, I have been flapping my gums about people who hold large sums of cash in the very near future are going to get wiped out. Buying up raw acreage is better than gold, just make sure that you get the mineral rights to the land. If I had 20 million in cash, I would most certainly spend half of it and find several pieces of land (diversify) with minerals and some with live water.
This is assuming a world-wide disaster which may not happen.
Land is currently overpriced (at least in the NorthEast) and real estate prices haven't come down that much.
Maybe good for diversification like you said but I don't know if a large amount of $, percentage-wise should be parked there.