Deconstructing the Deal: The Psychology of "Free Delivery" and the $1 SubThe brilliance of National Sandwich Day lies in its mastery of perceived value. Let us be clear: the"$1 footlong" is more concept than reality. It is a "white whale," a mythical creature rumored to exist in the "terms and conditions" of a limited-time app offer, available only to the first fifty customers at a participating..