[awolf]

But.. the web is very consistent. Sure, from page to page you might see completely different button graphics, header images, and colors. That's not what is important though. Think about the layout. The spacing. The background boxes behind your text. Contrasting font sizes for header text vs content text. Ancillary links at the bottom or top. The deltas between colors an individual page is expected to use (and the variety in colors an individual page is not to use).

The consistency of the web is very important. That consistency is exactly what lets us look at a new web page and immediately start making sense of it and websites that don't conform to this consistency are the websites that we immediately label "terrible" and "unusable".