I have seen a few very nice Chinese sets with Boxwood and Pearwood CNC carvings and most of the are really great. In some of the cases I think manual carving can give better results but CNC has unlimited advantage in making IDENTICAL parts because, of course, those don't want to be REALLY identical in manual practice. However, I can't see at the moment that CNC carving would become a real option for the individual modeller. Timewise it is not competitive at all to create the artwork, designing the toolpath and running the carving itself. For sale, probably, if one can secure the appropriate quantities for which the above one-off efforts would pay off, and provided, that the maker has enough experience in the other aspects of CNC'ing. So the Cinese might have a market for their better quality CNC carvings as none of the other kit makers seem to want to put any effort into that (I know, Western wages, etc., etc.)
Janos