#2: Any vendor will buy a good at say, $9 and sell at $10. In the US there are many pawn shops saying "We buy and sell gold!" - it's never at the same price.

#2: Any vendor will buy a good at say, $9 and sell at $10. In the US there are many pawn shops saying "We buy and sell gold!" - it's never at the same price. #1: A smart gold trader will buy low, sell high.. they will buy more gold when prices are low and advertise to sell more when the price is high.