The crowd was large and the excited - there was clear evidence that this is a grass roots campaign. The official attendance count provided by the fire department was 450, that outnumbered the attendance at the Biden event by some 120 people.
The description of the two events is that the crowd at the fairgrounds tonight was 4 times more excited than the early days event.
Here is video on Fred Thompson stumping for Doug Hoffman. (Apologies the audio went quiet for a bit)