The high cost has driven me to build my own from scratch. If it were not for the fact that I consider building to be a hobby in and of itself, I would not bother. I have paid the price in hours spent. I can attest to what others above have said about the cost of development. If you count the hours spent designing the laser cut parts, and multiply it by the hourly rate I get paid for doing it for commercial buildings, those CAD files would be worth at least 5k, and probably closer to $10k.