I thought the same thing. Winning 4 out of 5 is pretty definitive -- you're going to obsess over some possible way to win the 5th all these years later?

I've heard it said that champions like Michael Jordan, Tiger Woods, Sampras, etc. are motivated more by avoiding the feeling of loss than by than having the feeling of winning. They are motivated by negative emotions rather than positive. That jibes with this anecdote IMO.

I would probably congratulate myself on 4 out of 5, which is why I'm not a champion :)