Proving a thing that’s only known empirically is extremely valuable, too. We’ve an enormous amount of evidence that the Riemann hypothesis is correct - we can produce an infinite amount of points on the line, in fact - but proving it is a different matter.








If you’re just wanting to play it, you don’t really need the models, do you? Couple of packets of the cheapest army men you can find in the toy shop will do it you want fancy pieces, but just folding a piece of card in half so that it stands upright and writing on it what it is will suffice.
3D printing would do very nicely for the one-off models that you don’t want to kitbash, of course. Also great for playing DnD with; another game where you’re not obliged to use the ‘genuine books’ to play either.