Those are all great questions. And you were smart to back away.
This time of year I don't spend anymore than $50.00 for a two or three day event. Now, there are shows in my area and neighboring states at $150.00 to 200.00 but I don't play.
!) Are the vendors juried or is there a handmade criteria.
2) Will retail or re seller's be aloud?
3) If the show allows both handmade and resell are those two groups separated or are they inner mingled?
4) Does the event planner offer tables or electricity?
5) What type of advertising has been planned, radio, online, large street side banners,print or new papers?
6) What are the hours?
7) Is there a door fee for the customer?
8) Will there be food vendors? Beverage vendors?
9) Security??????? Over night?
10) Parking for vendors? Where?
11) Will promoters be on site to assist with follow-up and setup and tear down?
I'm sure I am missing something.