For most of us as a working class investor, gold is not suitable for most our retirement investment goal. Gold is an asset class, but it does not generate any income. Investing in gold is a speculative play to wait for its appreciation, not like investment in real estate, bond or dividend paying stock. But if you are high net worth investor, I would think that you will need to invest in gold. As matter of fact, I would buy gold bars and store them in some safe storage place.