Not long before our first child was born, we saw a clever magazine ad that showed a home computer on one side and a baby on the other, compared and contrasted; the baby required constant service, while the computer worked reliably. The computer had a price shown at the bottom of the page. As for the baby, the ad said “Price: Priceless. This device is not for sale.†We got a big kick out of that and clipped it to put with baby things to save.