What's the difference between adobe photoshop CS4 and CS4 extended?

I think it might be best to think of the differences in terms of what you need Photoshop to do. I have Photoshop CS4 extended and find that the extended features are things I do not use everyday. The extra features do come in handy when I want or need to use them but many users may never use the extras. There are 3 features that are added in the Extended version: Analysis (that鈥檚 CSI stuff), 3D (you can work with 3d Models in Photoshop NOTE: not all 3D file formats are supported by Photoshop) and finally Video (Video in Photoshop Extended is like After Effects Very Lite).What's the difference between adobe photoshop CS4 and CS4 extended?
About $300. Ha ha. But seriously, here is the breakdown of features:


http://www.adobe.com/products/photoshop/鈥?/a>





Bascially the extended version has some 3D tools and ';smooth zooming'; and few other small features. Unless you do 3D, it's probably not worth the price.