Don't forget to buy Non-Hybrid Seeds
During the Islamo-fascist-afro-Americommunist War of 2012 (as the Mayans predicted!!), when all of your fears have been justified, people won't care about gold, it's going to be FOOD.
During a real crisis (like the crisis you always feel is approaching without your consent), non-hybrid seeds are the ULTIMATE barter item.
You can't eat gold.