Of course when they bring in new rules governing the limits on size for offshore passengers to fit through a window, atop the rotorhead might be the only option for some
But then, as my kung fu master says: Stay centered...
Sitting on a rotorhead is a very lonesome place to be.
No room for small talk with other pilots (sitting on other rotorheads of other machines dozens of meters away).
No room for the lunch box.
But still: Great views from there...
at least until John R81 lights the fire