That is if it is the pixels per unit that lead to cost, vs the size of the display itself. Obviously it is harder to make a 1 inch x 1 inch display with 1 mil

That is if it is the pixels per unit that lead to cost, vs the size of the display itself. Obviously it is harder to make a 1 inch x 1 inch display with 1 million pixels vs 1000. But maybe the difference from 600ppi to 200ppi is not enough to matter...