That all being said, when I built my CNC your comment was almost exactly what I had in mind. I wanted something a little more beefy than the sherline ways and screws, but was unwilling to deal with a Chinese conversion. The limiting factor will be what people are willing to pay for. It's a tough sell to get people to pay what the fit and finish would cost. I kept costs "low"* by doing the work myself, and had the tools available to me. What I would have to charge someone to do the same would be quite a bit. At that point it becomes attractive to get one of the bigger mills (cost wise) if you have the space. I don't, so it was a pretty perfect fit
*Having a ready supply of free frame/base stock was also helpful, as were several great surplus finds. Cost for the motion components were above what I would have paid for an X2 as well.