Why didn’t I do this with my CNC

The next gen of homebuilt CNC’s seem to all be made with extruded rail.  Which makes life SOO MUCH easier to build and know the drift isn’t so bad (as mine is with MFD).  But the cost goes up fast.

http://hackaday.com/2013/07/26/cnc-router-built-with-8020-rail/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29