I used to work at the Science Centre helping with the new displays and exhibits.
We'd track how many people use which exhibits and we learned something right away...
People always gravitated towards exhibits about THEMSELVES more than an exhibit about something else.
No matter how fantastical the something else was.
Here's an actual example...
We'd spend thousands of dollars on an exhibit about the power of black holes.
Then beside it we'd have a $30 scale we bought at Eaton's (which was around back then) that we'd tweaked and we put a sign over it that said, "HOW MUCH YOU WEIGH ON THE MOON."
100x more people lined up to stand on the scale then went over to the black hole exhibit.
That's why you still see all the silly mirrors, or how fast can you pedal to light up a light bulb, or can you squeeze this lever etc... exhibits from the 1960s if you go there today.