Unless you're volunteering to be the pinball sales police and go out and verify for each sale that there's a box, then it's not worth bringing up. People will use whatever terminology they feel. Some of it is goofy, and there's nothing anyone can do about it.

*** I hope you're not going to volunteer to be the sales police, there's better uses for your time.

Forget terminology, if you're buying a machine, give it a good going over and buy it if you think the price is fair, or don't buy it if you think it is not.