This is a bit of an eye opener because I have to admit I struggled with this very concept, for example when I wrote about the theme in How did the present get erased from our existential psyche? In this TED presentation Danny Kahneman clearly delineates the two fundamental modes on how we measure happiness.
Its reassuring to know that you can manipulate the darn tzores with a happy ending. What else is new?
Further Reading:
Dan Ariely, Amos Tversky and Daniel Kahneman
Can one inherit an Experience?
Psoy Korolenko & Daniel Kahn – Yiddish Song to Stalin