I do have to say that this machine is...well let me put it this way. About a year ago I was seriously considering buying one of these 'unfinished' lower receivers* and did my research. To finish them you need nothing more than 5 minutes and a drill press. Why would anyone buy an expensive, dedicated to do that?
*Not because I have any particular problem with my guns being registered. I was just sort of hoping it'd be a less expensive way to get an AR-15. It is cheaper, but still too an order of magnitude more expensive than what I can justify spending on a sport rifle.