sunk cost- get over it. Nothing worse than grumpy dads sulking around the park because it’s expensive.
I don’t go very often anymore, but when I do go I try to think of something I can do individually with each of my kids for them to remember as just the 2 of us.
My daughter and I always get marshmallow wands. That’s our thing. One of my boys always goes on star tours with me by ourselves at some point.
Finally, you’re going at the absolute worst time of the year so enjoy!