More importantly we can legally get our mechanics and electronics away from the heat. A lot of machines under construction at the moment I'll bet (including #2 for me) Unfortunately the heated chamber is not their only magic bullet. The extrusion control on the software side is where the real magic is as far as I'm concerned and you cant see it cuz they encrypt their gcode. The Fortus has a 70mm long heat zone and no attempt to establish a well defined heat break yet their extrusion is superb and holds .1mm dimensional accuracy (on the 900).