Economy Size?

Anyone else notice that that the economy size packages of various products have ceased to be a bargain and instead have become a new profit center for retailers? Not too long ago buying the larger container of products got you a discount on the unit cost. This seemed reasonable due to less packaging material and associated labor used. Not anymore. Since we're been trained to expect a sharing of the reduced cost, this has been identified as a profit opportunity and is now a fairly common consumer jab. I've seen this in items from motor oil to tuna fish at places like Wallyworld and Tarje´t. It is not easy to spot without a calculator because of miniscule or absent unit unit cost tags and odd numbered lists prices. So take a calculator along or do what I do: take a black sharpie pen and perform the necessary division directly on the retailer's shelf. ;-)