The domain amazon.com attracted at least 615 million visitors annually by 2008. Amazon attracts over 130 million customers to its US website per month by the start of 2016. The company has also invested heavily on a massive amount of server capacity for its website, especially to handle the excessive traffic during the December Christmas holiday season.
I do not like the security of this apps. By default any one in my home can just open it up and start buying things on my account. I would like it to just add things to my cart on the TV and them buy on "My" Computer or "My" phone. I know you can setup a PIN for "videos, purchasing and certain types of content".But, you then need to enter the PIN for $0 videos. Also, anybody with access to the Fire TV remote can just install the apps and start buying things, no pin, no password, just because you have a Fire TV setup on your account. Amazon you need to have a separate PIN for Buying videos, parental control (ratings), Apps and Shopping. And by default the app should setup a PIN.