I'm not voting because it's unlikely I would attend anything more than a couple hours away and maybe even not then. I've never attended Canoecopia but did attend Midwest Moutaineering's spring event in Minneapolis a few times. Like Canoecopia it had been a long standing tradition but it was finally called off not too long before the store shut down (due to owner retirement I believe). There were a lot of vendors (canoes, gear, outfitters, etc) and plenty of speakers.
I attended a few of the presentations but never cared for them much. They were not a draw for me.
It was nice to walk around all the vendor booths but, again, not really a draw for me. Most of the things I was likely to be interested in I was already familiar with.
For me the big draw was the used canoe auction. Anyone could bring in their used canoe or kayak and they had an auctioneer them to sell them off. This was very entertaining to me at the time since I was so into boats and I made more than one impulse buy at the auction. Probably not a big draw for most other people though.
Having water available for paddle demos sounds good on paper but seems like it could be overwhelming in real life. Staffing must be an issue for the manufacturers as well as the organization putting on the event and trying to keep a functional, safe, and worthwhile canoe demo going at the same time seems like it would be quite difficult. I might be wrong but I would guess new boat sales are a small percentage of what actually makes the event money.
I commend you for at least contemplating taking this on!
Alan