47 Mechanical Pencils

Today I saw the McDonald's commercial in which several employees are discussing a trade. Instead of talking about how much money each object was worth, they discussed the trade in terms of hamburgers. It got me thinking. I think I actually think about purchases in terms of the number of mechanical pencils I can obtain for the same price. For example, my sister-in-law recently started selling "elf-on-a-shelf dolls." One might think, "oh, it's only $25" for a personalized doll. Many people are lulled to sleep by such logic. However, a wiser decision would be made if one asked the question, " is this worth 5 pentel 205 mechanical pencils?" Asking it this way makes it more of a rhetorical question.