[afhof]

I take almost the polar opposite approach to you, always providing a safe fallback to plain ol' HTML. I feel its a defensive style and doesn't provide a single point of failure. I run Noscript since it makes most pages load much faster. No offense, but I don't want to run your code, I'd rather read your content.

[evandavid]

Fair. Would you feel the same way about a web application, as opposed to a content-heavy site?

[polynomial]

Are there still content heavy sites? Not to be facetious here but it seems user demand is aligned with smaller and smaller, more and more active bits of content served by web applications. At some point you may have a lot of content, howev it's not so much heavy as it is highly interactive.