I think this article makes one assumption that isn't correct.
"This means that even though Valve will be selling this hardware at a loss..."
From the reviews I have read, Valve is not planning on doing this. They are not doing an Xbox type of deal where games are overpriced and console is cheap. If I am not mistaken, I got this information from the LTT review where they talked with Valve about this directly.
snvzz|3 months ago
Getting new people into the Steam ecosystem should be worth losing a bit through the machine sales, with long term thinking.