[drcy]

If it was a just a baseball like any baseball, you could then give ARod a different ball and he'd be happy. In fact, he and the Yankees wouldn't even be asked for that ball.

You can fairly argue that it's irrational for people to sentimental about a particular ball that looks just like many others, but humans are sentimental. Our world economy, political and social structures are in part based on sentimentality and psychology.