Consumer buying behavior remains as much of a mystery as ever despite what the marketing gurus will tell you. If you need evidence just look at the failure of most businesses and adverting campaigns. It is clear that there is not magic bullet for retail, not skeleton key that will unlock the minds of all consumers.
Lots of time and thought and money have been placed into consumer research but it remains as hard as ever to get people to buy. The mind is complicated and there are lots of factors that go into making a buying decision. Experts will tell you that they have it down to a science but no one can make you buy something. All the psychology in the world won't open a wallet.