In addition to the age component, what I've not heard mentioned is the cultural component.
Many have said, "there are a ton of 20 somethings in my league, 20 somethings love pinball" and that may be.
What is a new phenomenon is "tiny houses" and nobody with a tiny house is owning even one pinball machine.
The '80s folks grew up with Miami Vice and consumerism. Some in this younger generation seem to appreciate a simpler lifestyle. OK with living in a tiny house or not collecting tons of crap.
They might play at a location on league but not necessarily own a machine.
If society evolves to a "Ready Player One" culture where trailer homes are stacked on top of one another, pinball ownership would not fit in that lifestyle.
I am not making any assumptions or anything, just wondering what pinball ownership might look like for future generations.