I mainly use this for my Extruder Stepper Motor since its the only one that moves. It basically takes the pressure off the Main wires coming out of the motor irrespective of the Extruder's movement. Hope you find this of use. Also Make the X Axis Wiring Support Hose Clip - thingiverse.com/thing:14969
I also like the way it makes the prusa look.
Note: That the uploaded version has a lighening hole in the back which allows the motor to get air.