It means they try to trick you into joining Prime, every time you make a purchase. Case in point: Yesterday my wife made a small purchase on Amazon. In the ev

It means they try to trick you into joining Prime, every time you make a purchase. Case in point: Yesterday my wife made a small purchase on Amazon. In the evening, I was checking our shared credit card statement and noticed that there were two charges from Amazon. One was for the amount of her purchase. The other was for $1.00 and said "Amazon Prime". I went to my wife and asked her, "Did you mean to sign up for Amazon Prime?" Her reply: "What is Amazon Prime?" We then had to go into her Amazon account and manually cancel a service we didn't want that would have silently billed us $99 in 30 days. Now, you could say, that perhaps my wife did not clearly read every word of every screen that was presented to her during the checkout process. But shouldn't it have been obvious? My wife literally had no idea she signed up for something that costs $99, by accident, all while making an $11 purchase. I don't think it's possible to argue that this is an accident. Amazon clearly knows what they are doing, and it is by design.