Just wait for gold to become rare. Then stick it to them.
I wonder how it will happen when people realize they are getting scammed.
I'm assuming that once the gold price can no longer be kept artificially low and it begins to climb, many people want to claim their gold to sell it.
Obviously, since 200 people have a claim on the same piece of gold, only 1 out of 199 can redeem it, but the other 199 still have their claims.
So I think the vaultkeepers will just attempt to buy the gold of their hand with worthless paper money. They will probably offer a high price too, so the persons "owning" the gold (the gold claim, i mean), will think they get a good deal. While in reality they are getting scammed.
Sure, getting $10000 and ounce might seem like a good deal, but when all those gold claims have been resolved, and all that gold is now the legal property of the vaultkeeper (in other worths the vaultkeepers have now cornered the market) they can now set the new price to $500,000 per ounce and you will never be able to afford an ounce of gold ever again.
However, if you just hold on to our claim refusing to sell, you might not ever see your gold again, since if enough people do this, the vault will become insolvent, claim bankruptcy, and you won't see anything at all.
That's why it is important if you buy gold, you safekeep it yourself.