. http://mashable.com/2015/04/19/what-...aw-doesnt-say/
In a section that deals with the cost of building these circuits, Moore explains that the cost of squeezing in additional components falls until the yield levels — the number of final circuit boards that actually work— start to fall. At that point, the costs tend to increase dramatically. As components are added, decreased yields more than compensate for the increased complexity, tending to raise... The cost per component.
Thus there is a minimum cost at any given time in the evolution of the technology. At present, it is reached when 50 components are used per circuit. But the minimum is rising rapidly while the entire cost curve is falling