Personally, yes I find the $18 to be a bit much for what you get. However, it's tradition so we go every year and suck it up lol
I am taking my daycare children a couple times and thankfully, they are all free, so I try to think of it as "4-5 of us for $18"...it helps a bit lol.
If anyone has the bogo adult admission ticket(s) that they won't be using, I'd love to take them off your hands