In business, one key to customer satisfaction is to exceed expectations by "under promise, over deliver". Amazon certainly does that very well in terms of their order fulfillment.
I ordered the Lord of the Rings: Return of the King Extended DVD on Wednesday night, Dec 8. Amazon said the product will be available on Dec 14. Free shipping will take 2-6 business days plus an additional 1-3 days before shipping. Thus the expected ship date is Dec 16 and the my delivery date is Dec 20-24.
I got an email on the Friday the 10th saying the order has been shipped, and I receieved the package today. This totally exceeded my expectations which Amazon wisely under promoised during the holiday season. I'm impressed.