Interesting input from you both. About what I expected. My first show last year, which was small, I got lots of questions. And exactly as mentioned, when they realized cost and the fact that Lowes or Home Depot doesn't sell a ready made kit and offer installation, they seem less interested in their own show.
I did have one person offer a rather large sum of $$ to build, sequence and troubleshoot but was sure my own issues would get but to the side if I did that.
Thanks for your stories.