We are? There are games like this in any modern "arcade" like Dave & Buster's. If you mean why aren't we building highly specialized hardware like this any mor

We are? There are games like this in any modern "arcade" like Dave & Buster's. If you mean why aren't we building highly specialized hardware like this any more, I'd say it's because most of that complexity has moved into software running on general-purpose hardware, which is infinitely more flexible and maintainable.