In my previous life I was a motorcycle dealer and going to shows is so much work and costs so much money its really hard to justify going. I totally get why shows are dieing a slow death these days.
I think that the vast majority of rustproofing formuls are non-drip but regular oils or gear fluids used in the 1900's were very runny. Maybe your neighbour found an old school sprayer. LOL
I didn't go, we had hockey friday night and all day saturday - decided to spend yesterday looking at car audio stuff and getting some outside work done.
I will give the show the benefit of the doubt though - I think it's more about the current state of the powersport industry than it is the "shows" fault.
A show is only as good as the vendors - the vendors depend on the industry ( and costs to them )
Everybody is looking to save a dollar these days - so it all goes hand in hand.
It's just a sign of the times and certainly is not limited to sleds.