Imagine that you have an extraordinary opportunity -- a once-in-a-lifetime chance to ascend Everest or sit with the Dalai Lama or rocket into outer space. This will be the peak experience of your lifetime and, what's more, you will have the added pleasure of narrating your adventure for years to come.
Or will you? Many of us hunger for special experiences, things none of our friends have done or will do. But do these adventures really make us happy in the long run? Are they worth having?