Choosing free time over economic growth

Ezra Klein discusses the French presidential election and that country's love of leisure time:

The apparent popularity of the 35-hour workweek, though, deserves some attention — as does the French mandate of 5 weeks of vacation. The French like not working incessantly. They are consciously sacrificing a bit of economic growth in order to devote more time to leisure. It's a perfectly legitimate choice for a society to make. But it's never represented that way in domestic punditry, as we exclusively evaluate policy decisions based on their effects on measurable economic indicators. [...]

I'd give up a lot for a guaranteed five weeks of vacation. That's time enough to vacation with friends, and regularly see my family, and take the occasional long weekend. Indeed, I'd love to see an economist model what that would cost us. It would have to be an almost unimaginably high number to dissuade me from taking the deal.