To the original question: Both JJP and Stern will survive past 2020. Both companies make great machines. HOWEVER, I am under the impression that Stern is being run as a business for profit, and JJP is being financed by very rich people as a hobby. If you had millions or billions of dollars and were looking to maintain investments, why not own a pinball machine company along with your port-a-potty business?

I have nothing against either business (both make great pins), but I don't think the business model is necessarily the same for both of them. Both are trying to make money, only one has to remain profitable to make pins.