One of the characteristics of commodity money-- one that originated naturally in the marketplace-- is that it must serve as a store of value. Gold and silver meet that test-- paper does not. Because of this profound difference, the incentive and wisdom of holding emergency funds in the form of gold becomes attractive when the official currency is being devalued. It’s more attractive than trying to save wealth in the form of a fiat currency, even when earning some nominal interest. The lack of earned interest on gold is not a problem once people realize the purchasing power of their currency is declining faster than the interest rates they might earn. The purchasing power of gold can rise even faster than increases in the cost of living.
The point is that most who buy gold do so to protect against a depreciating currency rather than as an investment in the classical sense. Americans understand this less than citizens of other countries; some nations have suffered from severe monetary inflation that literally led to the destruction of their national currency. Though our inflation-- i.e. the depreciation of the U.S. dollar-- has been insidious, average Americans are unaware of how this occurs. For instance, few Americans know nor seem concerned that the 1913 pre-Federal Reserve dollar is now worth only four cents. Officially, our central bankers and our politicians express no fear that the course on which we are set is fraught with great danger to our economy and our political system. The belief that money created out of thin air can work economic miracles, if only properly ’managed,’ is pervasive in D.C."