But still, you are not using the gold, you are just paying GoldMoney to put a tag on a chunk of gold with your name in it. Then you receive a receipt that you have X amount of gold. And then my comment repeats itself. Still, it is a good way to store wealth, but not to trade.
PD: By the way, do you know if GoldMoney do have as much gold as people claim to own? Maybe they are also printing money.
Goldmoney uses Brinks Storage so we are relying on Brinks to have the gold and I do wonder about it a lot. You can, with a click, receive physical gold to your address anywhere in the world. To trade Gold and silver you can use EToro.com Social Trading for non-professionals, great system.