...plus, other ASIC producers are already building their "mining" farms. This is certain and there is no deterrence to stop them to do it. There is, indeed, a very attractive incentive to rise the margin of profits and shift all the risks to the customers. When KnC delivers their customers will have to compete with a difficulty generated by "mining" farms from all ASIC producers.
There was a school of thought at one point that there would be a rise of these massive farms and a massive decrease in the involvement of small-time personal miners. Eventually however, it is believed that these farms will essentially kill each other off. As margins become razor thin the only ones still able to mine at a profit will be the small time miners who have significantly less overhead.