A Dye Job is Cheaper

One of the books I'm currently reading is Freakonomics by Steven Levitt with Stephen Dubner (I always read a couple of books in parallel, it's more confusing hence more fun). I have seen Levitt on The Daily Show with Jon Stewart and I'm not really surprised by anything in the book, still it is indeed very entertaining.

Here's an example (page 83):

In the world of online dating, a headful of blond hair on a woman is worth about the same as having a college degree--and, with a $100 dye job versus a $100,000 tuition bill, an awful lot cheaper.