I agree with the claim that dollar stores are sometimes more expensive, but asserting the unit cost is higher is an over generalization. One of the nice things

I agree with the claim that dollar stores are sometimes more expensive, but asserting the unit cost is higher is an over generalization. One of the nice things about dollar stores, in my part of the world, is they don't play games with sale prices. Sale prices make it easy to cherry pick prices seen at other retail chains once or twice a year then claim they are cheaper. In many of those cases, the product is only cheaper per unit because they force you to buy the product in larger quantities (e.g. by taping or shrink wrapping multiple units together). That may be fine if it is a product where you can plan ahead, has a long shelf life, or is something you use in quantity. It is not so great when it increases waste since it is a "just in case" product or you won't be able to use it before it expires. If your aim is to reduce waste (or resources or money), you may be better off buying the product when or as it is needed. At any particular moment in time, the unit price at a dollar store may very well be lower than that of other retailers.