Yes Brocky the fees have got out of hand, the venders are not showing up because of the high fees either, the big house has gotten out of touch with this.
I think where ATHS is confused is they see it has a revenue source and it could be.
For a vendor it's time x cost ÷ the visitors that walk past you, not necessarily how many people attend the event. They have multiple venues they can attend. So if they are going to stick you in a side building, don't treat you right, are over priced or located at the back gate you'll go somewhere else. The going rate seems to be $100 for each100,000 visitors, per 10' x 30,' going past your booth.
ATHS wants several times that
Double Mountain Manufacturing LLC