WaSP suggests that you use your message to encourage users with non-compliant browsers to upgrade and provide a link to an upgrade page. That includes any device capable of displaying files retrieved on the Internet eg. Hand-held devices, WAP Phones, Braille readers and Internet Fridges. We don't test for N4 and then serve the specially designed N4 content. It will just look a little old school.
Lets look at the many other benefits.
There are some other great benefits of separating your content from your formatting. I reduced the file size of the SitePoint page from 34,353 bytes to 18,585 bytes. Should you decide to add Geneva to your font family because you're becoming Mac friendly then modify your style sheet and the changes will be reflected across your whole site. That means no more separate 'print version' pages. Those of you that code by hand should have no trouble making the transitions to this style of HTML and if you're anything like me, you'll get a kick out of doing something new.