I worked with that sort of equipment a lot. The cost per minute is enormous anyplace, but I imagine in Manhattan it is over the moon. There will probably be at least 50 people 'on the clock' to support one crane. I'll bet I could live the rest of my days on the cost of the permit for that project.
I was a mechanic. You want to see crazy people? Have a mechanical problem on a project like that. You can have 20 people screaming at you all at once :)
50 people? I really hope its less then that. The support crew to operate that crane is a huge price tag. And if the crane isnt scheduled in properly, there's money literally flying out the door!