Hey, in my book, more obscure hobbies are much more interesting than popular ones.
I mean, whatever someone is into, that's cool. But, if you meet someone and they tell you their hobby is, for example, golf, what do you say? I usually say, "oh cool" and that's the end of it. No desire to hear any more. Honestly, I usually conclude (possibly unfairly) that this is a boring person.
But if someone's hobby is more obscure, then I usually want to hear more about it. I think pinball fits into that category for most people.
So, someone may think we're all weird, but at least it's not a cookie cutter run of the mill hobby.