A bit unfair since "pinball machine" used to refer to exactly what a pachinko machine is for a couple of hundred years before the "modern pinball" arrived.
IMO it's a difference worth mentioning when pachinko is a big enough addiction there to make $187B in 2014 (vs US casinos $65.6B) and cause child deaths (while I was there, maybe is better now)
I get a different sense of lucre when I hear "left the pinball industry for better margins" (pocket change gaming) vs left the gambling industry (life savings gaming)
The revenues from Pachinko are complex and should not be directly compared to a trackable traceable business.
Pachinko is the primary method for the Yakuza to launder money, there's a reason there's one on every corner. Cash for tickets, tickets for cash/prizes. Clean money.
(https://en.wikipedia.org/wiki/Pinball has the first bagatelle spring plunger around 1750 and flippers around 1947)