Since not all muslims could afford to just go out and buy 1oz of gold, it wouldn't be a one time spike. Many of them would be buying it in 1/10's, 1/20's, grams or whatever until they all had their 1oz requirement. The only question is, why haven't they actually done it? Sure would be much less messy than blowing things up and hiding in caves.
Can you imagine the WH trying to explain why it was necessary to attack Iraq cause they were buying too much gold. What a hoot.
Richard W.