The answer is quite simple, really. I'd rather play the completed version of Chris's vision then play whatever has led up to that point. I have always been a perfectionist, and nothing annoys me quite so much as something that is uncomplete, in any way, shape, or form. (This may also explain my love-hate relationship with modding.
But even if it takes another 2, 3, 5 years, I'll still wait for it all the same. Because while I have an intense hatred of the uncompleted, nothing fills me with more satisfaction then the idea of what Kenshi can, and will, be.