Nobody reads a mystery to get to the middle. They read it to get to the end. If its a letdown, they won't buy anymore. The first page sells that book. The last page sells your next book.
The same could almost be said of scientific papers. Posters. Talks. Your intro sells the current work. The discussion will bring them back for more.
I have found that operating at different time scales is difficult, but necessary. This paper is not just about this paper.