[zerostar07]

Click here to read why you should probably ignore this advice: http://www.marketingsherpa.com/article.php?ident=30124

I believe people process text faster than they process visual cues like fancy icons or underlined anchor links. "Click here to view demo" seems to be faster to process, and more explicit than a fancy "View demo" hyperlink (CSS re-styling of links does not help in that respect). This is pure speculation of course, but one might try to do the reaction-time experiment.