With Amazon Prime, you can have your orders delivered to you within two days. When I first read that a long time ago, I thought to myself, "There's no fucking way they can make a profit with that considering how expensive two-day shipping is." I'm guessing I was right because a few years later Amazon implemented some policies: Add-on items, i.e. items that are so cheap they require the order be at least $25. Or giving customers the option to choose a slower shipping speed, but you get a $1-$3 coupon for digital music, books, or videos. It's the latter that confuses me; I usually choose it when I'm not in a particular hurry. However I couldn't help but notice a reoccurring pattern: Amazon would hold onto the package until two days before, then ship it. So it's still a two-day shipment, you just waited a week. Sometimes I even receive it exactly two days after I placed the order! How is this saving you money? My only guess is behind the scenes their internal trucks moved things between warehouses at a slower pace.