In video you are starting with nothing but a black screen. There's no game there. With pinball you at least start with that basic concept, but not with video. The challenge of going from no game to something today is only different because you have to create something so damn fun people will pay $1.
And it's always possible that you will not get a nice review. So - and that's enraging of course, to get a bad review, you can't talk back, and it's sort of shaming in a way.