“We find consistently that people are wary of marketers tracking them, don’t understand the complexities of data mining, and don’t like to be discriminated against based on information that companies have about them and others. They may therefore see personalization as a double-edge sword. Personalization can provide them with material they like, but it just as well could be used to shape their behavior or beliefs, or even cause them to lose out on discounts to more desirable consumers.” – The New York Times