I have no idea, that's why I asked the question. From what I can see on their site, the price is offered up front. I suspect that because this is worldwide, there will be downward pressure on price since lots of talented devs live outside the US, and don't have the same level of expectations salary-wise. So I'd imagine this would be most useful for non-US residents and more junior devs, but I'm definitely signing up just to check it out.