Personally, having two shows back to back is a plan for failure for everyone. I know that several of the vendors that I spoke to were dissatisfied with the turnout of spectators.
This was only my third time attending the event, but thought that the foot traffic was ok on Saturday, but seemed to be next to nothing on Sunday. As a vendor, I was satisfied with the results that I achieved for the weekend.
From my distant observation, it seemed to me that the show car count was down from previous years. I did not hear any numbers of entrants, but it seemed like it was less than years past.
Hopefully, the two groups can come to a mutual understanding so that the show can survive. Otherwise, those who travel to the show from any distance will have to make a decision on which one that they will support.