When an individual obsessively tracks their online orders to the extent that as soon as the order is placed, they are looking for a tracking number. When they get the tracking number they follow their package every step of the way, sort of like they are a surrogate traveler on their package's journey. "Hey, we just got to Atlanta". The high or "payoff" is when the tracker gets an e-mail that the package has been delivered, opens the door, and there it is. Weather delays are serious bummers to premature trackulators.