jQuery corner plugin = rounded corners solution?

So I just checked the jQuery Corner plugin, which I've seen used in the Acquia/TNT/Fusion themes, and its a plugin that adds rounded corners to blocks without using images. I've just been playing around with it and now I'm thinking where were you when I started putting 28 rounded corners images in a css sprite image and control them with dozens of lines of CSS selectors. The reason why this type of plugin is so nice with Drupal is that it works perfectly even under these common situations:

• You need a block style with rounded corners but the different regions where this block can appear have different background colors. This can mean that your number of rounded corner images is multiplied by the possible number of background colors.
• You want rounded corners on images
• You want rounded corners and and use transparency to let the background image shine through.
• Your blocks can be colored themselves, thus requiring multiple image sets
Therefore it works perfectly as an optional Skinr block skin or panels skin. Its just what you need to add some variation and focus to a page with many blocks (like for example on an ubercart site). I find it strange that I havent heard much fuss around this technique. The obvious downside is that it wont work on users with JavaScript disabled but how many people browse like that today, and who are these people...? Does anyone here have any good or bad experiences with the jQuery corner plugin?