It's $160 per 1,500 cases, so 50% cheaper at the $160 buy in vs the 1000 pieces of starline brass for the same price.
At 10,000 cases its $975, which drops per brass down to 9.75 cents per case, which is not quite half the 16.1 cents per starline but pretty close. I cant find Starline in equivalent quantities to see if their brass goes down accordingly with volume.
At 10k cases, the 50% weight reduction of the SS case might also allow for cheaper shipping than the equivalent number of brass cases, further increasing the overall savings, although to what extent I don't know.