Earlier quoted context omitted.
That guy on TV is a broker. He doesn't want to hold any gold. He wants to sell and buy at the same time and make money off of the spread.
Not sure if the answer is obvious here but I don't know much about finance, does 'spread' here mean the difference in the asset price from purchase/sale time (whether by market change or artificial markup) or the brokering fees involved? or both?
Brokering fees are not calculated in with the base prices, though it would be once it's time to calculate returns.