Robin, you being sarcastic there, thought you had been around long enough to be well versed in the CNC world?

There is nothing stopping anyone adding a small trunion table at a later date to get 5 or even 6 axis. It just comes down to cost. The difficult bit is to do the ballscrew conversion neatly without milling the castings. After that its just bolt on bits really. With a decent controller, you can go up to 6 axes and then its just a matter of more motor drivers etc etc etc.

There is also very little cheap software that will output 5 axis gcode which puts a damper on many peoples aspirations.

Just as an aside, I am also making some fixture plate kits for these chappies to assist in part positioning and helping flip parts over easily.