Mr. Kay could have pursued his juxtaposition of the paradoxes of happiness and profit a bit further, for they show a revealing difference.

WSJ: Book Review: Obliquity

The hours of killing time before riding over to the hall, the putrid vending-machine meals on the run, the way-too-early-in-the-morning vans to the airport -- the dreary parts all become more than worth it when, for an hour or so, the singers can once again personally deliver a bit of happiness to the audiences who still adore their music.

CNN: What's better than a Grammy? Immortality

With the arguments in favor around economics and customer happiness and the arguments against limited to a bit of an issue around pixels and the downsides of size, Apple seems likely to fill the hole in the product line sometime this year, and perhaps the June date is a real one.

FORBES: iPhone 'Math': The Bigger Screen Adds Up

You'll miss the coffee a little bit, sure -- but the payoffs for your overall happiness make it worth it.

CNN: How to buy happiness

The pursuit of happiness, with happiness defined in the classic sense of justified and lasting satisfaction with life as a whole, depends on economic liberty every bit as much as it depends on other kinds of freedom.

WSJ: Charles Murray: Why Capitalism Has an Image Problem