If we are going to read minds around here, I am going to guess you are a long time proponent of returning to a gold backed currency and have purchased, a large amount. Therefore you a terrified that if an alternative backing for currency was developed you would become very aware of just how much innate value those 'precious' metals actually have. Sort of like how the Native Americans came to a harsh reality with wampum. Just a hunch.
At the risk of seeming even nuttier, if I was going to stockpile anything for the coming meltdown, it wouldnt be gold. Ammo, medicine, water filtration equipment and land would all be better bets =P