Pricing isn't based manufacturing costs, it's based on how much people are willing to pay. Charging the maximum the market will bear isn't greed, it's just smart business. They'd be idiots to give their product away for less than they could get out of it.
What is idiotic is comments like this. You don't know how much the network hashrate grows in the coming months, and pricing your product so high the miners won't even ROI if the growth is just slightly higher than pessimistic estimates is just plain greedy - offloading the risk to miners. Besides, if every manufacturer followed your advice of not selling to "the public", you'd just get centralization of the network hashpower - the exact opposite that Bitcoin is supposed to achieve.
Actually he is true. From a business point of view it's better to sell at what people are willing to pay than at manufacturing costs+small profit, but you need to find the sweet spot.