Gold coins might be used as currency in coming times
Economic recession has made millions of people think that they cannot rely on their current styles of living. People can lose homes, jobs and even the value of money anytime. That is why many people wish to have secure investment in shape of gold.
Europe is facing slight financial crises these days and their currency euro is not as stable as some of the other currencies are. It is possible that all the paper currencies might end up soon leaving gold coins as currency.