Since 1999 Amazon has used a patent on “one click buying” of products to sue other retailers. It expires in 2017, so you may be able to buy things more quickly online. The idea behind this patent is you allow a customer to buy a product as quickly as possible by using only a single click.
The only thing that is really unique about this patent is that it is on the Internet. Retailers have been trying to remove obstacles from customers’ purchases as long as there has been retail.
Just because something is on the Internet, it does not change the way the world works.