The web site just fits! Why?

Why is this web site "shorter" than many other web sites?
This web site is designed with the user (you) in mind. You want to 1. Quickly determine if we can do a good job, and then 2. Contact us. The site has been designed to support those tasks. The width is longer than the height because most screens are oriented that way. The material on each page is also limited so that you can easily find what you need and don't have to scroll.

Why is the banner graphic different at different times of the day?
This is accomplished using Javascript. We figure out the time of day and then display a different graphic based upon the time of day.

Why would we change the banner graphic like that?
Why not?