That works just the way I had envisioned. There is one unforeseen problem though... I hadn't thought of the idea that when you combine the two fields and for example you want to search for any show that has an entry fee lower than $50.00 for example... and you set both the indoor fee to $50.00 or less and the outdoor fee to $50.00 or less what you get in return are only those shows that have both an indoor and outdoor fee less than $50.00.
Is there any way around this so that the statement would be "OR" rather than "AND" when both are set? I'm not sure how to accomplish that. If you set both amounts to $50.00 or less it would return results for either rather than just those shows that have both.