As someone pretty familiar with the economics of single-chip miners - yes, exactly. The cost of integrating one chip into something would profit the chip vendor, and the integrator (if he could sell it), but never the customer. The customer would only pay extra for that much mining if he's an idiot unaware of the economics of the situation, or just doesn't care about the economics of the situation.

Been saying that for years, and if anything, the economics keep getting worse with time.