Joel
It may be that you have a helicopter so that you can get as close as possible to where you need to be. The aim of events run at places like the NEC is to get as many pairs of feet through the doors as possible. As most of those feet will arrive in cars then that is where the profit is to be made. The amount of cars they can get in an area the size of the footprint of your helicopter will make them more money than reserving the space for you and charging you a suitable fee! It's hard to believe but the world doesn't reserve around your convenience
