Yeah especially in NY. I know plenty of people that really won't bother to make the trek and try to PARK near the Javits center for the show without Triumph being there.
The demo truck is basically that. They roll up with all the bikes and you take a spin on a guided tour. Usually fairly fast. For some it's the only way to test drive a bike tho... How many dealers will let you take all the different models out in a day?