I have gotten into the CNC world recently as we have one at my University, granted im graduating on the 20th of this month, I still have the option of driving back down here everyonce in a while and using the machine. The thing I personally like is the safety factor in relation to using a hand held router. As weird is it sounds I am still uncomfortable using the router and I have been building guitars for the last 4 years. As far as one off guitars, I do one off computer modeling all the time as an architect, though not nearly as detailed as the guitar modeling needs to be fairly accurate as I am finding unless you expect to do alot of handwork afterwards. I have recently cut a pair of flying V's and in all honestly there is no way that I can by hand work as fast as the machine does. When I had it programed correctly, with all the pick up, neck cavity, electronic cavity, and the full body route in all of 10 minutes. Aside from that I still enjoy carving a neck by hand.
MzI