A smart article (also nicely designed, I must add) debunking the above-the-fold myth in web design:
Imagine a newspaper squashed all of its quality content on the front page. How disappointed would you be to open the paper to only find the leftovers?
The same happens with your site. If everything of exceptional quality is pushed upon the reader at the beginning, once they start exploring and the rest of the site isn’t of the same calibre, they’re going to be let down.