Interesting comparison, but you have failed to mention that 3D Systems (Maker of the Cube 3D printer) are currently suing the Kickstarter startup Formlabs, on what are seemingly baseless grounds: ( http://blog.makezine.com/2012/11/21/3d-systems-suing-formlabs-and-kickstarter-for-patent-infringement/ ) For people who wish to support the rise of these