The most important part of the JavaScript (and Flash and Java Applets and...) vs. non-JavaScript, et al question is much less about users and much more about ma

The most important part of the JavaScript (and Flash and Java Applets and...) vs. non-JavaScript, et al question is much less about users and much more about making sure that you site is coherently crawlable by the search engines. If you're site isn't easily crawlable by the search engines then you're pretty well hosed because that's where most users come from these days for most sites.