If Vaultoro is legit, this is a great service! The fact that they offer physical delivery is the key. I'm no expert, but it doesn't take an expert to advocate diversification. Convert some bitcoin (but certainly not all) to gold, and of that allocation, have some of it physically delivered and leave some of it in their vaults. The old saying that you don't own gold unless you're physically holding it is fairly accurate...but you also don't own it if someone is confiscating it from you. Keeping some in a (hopefully secure) foreign location is a good idea.