Idk if anyone's posted anything about this, but there is an adult playground in St. Louis called the city museum. It looks really cool and the prices are very much affordable (around $12 for general admission and they have other parts of the 'museum' which you can pay extra to get into). I saw it and immediately thought of you guys.
City Museum Website
Video of some of the events
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If anyone wants to, I would be totally down to start organizing a meet-up/munch next year maybe around Summertime for anyone in the area (or anyone wanting to visit). That would give us plenty of time to start saving for the trip. I'm coming from CA so I definitely need some time to organize myself lol.