A great roundup of 3 of the most affordable commercial desktop 3D printers.
http://hothardware.com/Reviews/The-Definitive-3D-Printer-Roundup-Cubify-Up-Solidoodle/
And every single one of them, either have a glaring flaw, or are downright hostile to the 3D printing community.
The Cube is from 3D systems which is a known patent attacker on the community: http://blog.makezine.com/2012/11/21/3d-systems-suing-formlabs-and-kickstarter-for-patent-infringement/
The Up! is proprietary and locked down, which means you won’t get any help from the Reprap community whatsoever.
And the Solidoodle carries not one, but 2 stepper motors on its Y axis, resulting in high inertial mass which means you’ll have some hefty speed limits.