...emotion is not a luxury: it is an expression of basic mechanisms of life regulation developed in evolution, and is indispensable for survival. It plays a critical role in virtually all aspects of learning, reasoning, and creativity. Somewhat surprisingly, it may play a role in the construction of consciousness.
in Emotion and Feelings: A Neurobiological Perspective de António Damásio
Isto foi retirado de um artigo simples e interessante no A List Apart sobre o valor do "Eye Candy", ou, na forma como eu o vejo, o bonito pelo bonito.
Houve uma parte que me fez sorrir:
Attention to design details implies that the same care and attention has been spent on the other (less visible) parts of the product—which implies that this is a trustworthy product.