Don't get me wrong, I've heard it said, it's just that it's always been at an airport with the ability to have them sit a few out while the planes that were ready got launched. AT LGA and BOS, I can see how it happens because of the airport layout for the normal departure configurations. What the controllers should do with those guys is taxi them down the runway to the back of the conga line and have them try it again after everyone who was ready when they were supposed to be departs. In any event, it doesn't sound like that was the case here.