That's such a greedy way to run an upcharge event. I would rather pay double the amount if it meant a less crowded experience--at least then the price would be justified. They're already charging extra admission, do they really feel the need to pack it to the brim to squeeze even more money out?
HHN is slowly turning to the Disney way of doing things...less effort for more money while getting bigger than they can handle. I get it, its a business, but for an event that already costs extra money, it seems extra ridiculous that you can only enjoy the $100+ you spend by spending an additional $100. At least at Disney's upcharge events, they cap the ticket sales at a reasonable level to where the park is actually moderately enjoyable.