Please keep in mind that Vaultoro was primarily set up as a way for people to easily buy, trade and sell allocated gold bullion secured as your legal property in your name within a professional vaulting facility.
We naturally offer physical Gold delivery because it is your Gold and you should be able to do what you want with it, but you might prefer to sell your vaulted Gold on the Vaultoro market, withdraw the funds as Bitcoin and buy physical Gold that you can hold in your hands from a local Gold retailer.
Silver is also stored under your name but we are not planning on offering the service of delivering Silver. The reason for this is that the value of Silver compared to its volume makes transportation very expensive and not very practical.