There is no way in the world I would buy one of these but I don't see the big deal here.
If Stern want to make it and think they can sell it to a target market good luck to them, if it works and ushers in some more kids into the world of pinball that surely can't be a bad thing for the future of the hobby.
To me it is no different from say Fender who make top quality guitars and bottom of the line cheap arse guitars or many car companys who make top of the line high priced vehicles and budget cars as well.