Gold as an alternative currency is an argument that has gained traction in the last few years. Since the sub-prime crisis in 2008, most central banks across the world have been printing currency in a big way. This has substantially eroded the intrinsic value of these currencies. There is an argument that central banks may prefer to hold reserves in gold rather than foreign currencies. That is because gold has limited supply. Hence, unlike fiat currencies, the supply cannot be increased indiscriminately and that will ensure that the value will be preserved. However, despite the constant arguments on these lines, not much is visible in the form of demand at the ground level. In case of Bitcoins, there are too many challenges over regulation and if the price is so volatile it is hard for anyone to trust as a currency. That may still take a good bit of time.