Good day, faire organizers.  I remembered this method when I was looking at some pictures of the 4 Winds Faire near Tyler, Texas about 10 years ago.
You can increase your patron numbers by inviting nearby National Guard and Reserve units to your event.  You can give them a discount at the gate and ask them to invite their families.  There were a lot of people in uniform one of the days when I was there.
Good luck and Godspeed this year!