Can you summarize Khaneman's conclusions here?
I would say that decision making for humans is a very diverse subject, as the things to decide are very diverse too. Evidently, it is not the same to decide if you are going to accept the doctors recommendations of a treatment or surgery that decide what book to read in a given day. But speaking about what to buy in the supermarket (what we were discussing) I repeat that sometimes we say that we are doing emotional choices but in really we are mixing a lot of rational decisions in our subconcious mind, that would involve not only price and quality (taste, softness, whatever) but durability, capacity to store the product at home, reduction of visits to supermarket, etc, etc. But I don't deny that sometimes you add to all that the fact that you like the packaging or the tv jingle.
Addendum about TV spots. I actively try to not buy products if their TV (or radio) spots are reproducing old fashioned, patriarchal behaviors.