Wow! Why no comments? This is awesome sauce. I´d buy that thing if it was for sale.
Indeed that should be made a product. Pinball game console with downloadable game content... It would be expensive but I bet there would be quite a few interested people. With serial manufacturing, costs would come down so that it could be sold for... what, maybe a thousand euros? Maybe 3000 at first? In any case, I think it could be sold for a price that is competitive with buying one actual arcade pinball table.