I like to watch American Pickers, a show that follows antique dealers all over the country as they scour dilapidated barns and overstuffed homes for treasures they can buy and resell. The main picker, Mike Wolfe, often uses the phrase, “If you want something, the best time to buy is when you see it.” In other words, if you are looking for a rare item and you find it, you better buy it because the opportunity may not come again.…