Circleville Pumpkin Show
http://www.pumpkinshow.com/
Comments from a USA trucker on Idleaire -
IdleAire was too expensive when fuel was cheap, and when the truckstops finally jumped on the bandwagon, so many drivers had gone to APU systems. IdleAire also takes up so much room that there is less parking where it's been put into place.
APU system
http://www.cumminsonan.com/apu/