130nm is 1800€/mm^2 from global foundries. You need to order at least 10mm^2 meaning it costs 18000€ for 100 chips. 28nm will cost you at least 10000€ per mm^2.

130nm is 1800€/mm^2 from global foundries. You need to order at least 10mm^2 meaning it costs 18000€ for 100 chips. 28nm will cost you at least 10000€ per mm^2. You get more transistors per dollar but the quantity of chips is the same.