Arisia Convention

One thing which I saw being done once, and was probably done more than once, was to send up an empty elevator to 2 or 3 for all the people who'd been patiently waiting. In some cases the only realistic option for these people was to go down to 1, be kicked off the elevator if necessary, and go to the back of the line. Perhaps this could somehow be made more systematic next time, though coordinating between floors would be tricky.