A great benefit of dynamic charts over static images, is the ability to drilldown, zoom, show/hide series, etc. With 3D charts you can also change your ‘camera angle’ onto the chart itself.
Click and drag your mouse anywhere on the chart to try it out.
However, what most cool about this demo is how each data series is “projected” onto multiple planes. This effect is most interesting when you animate the data. Click “live chart” (upper left corner) to test it out!
Check out another example of this kind of chart here.