How many of us have been tricked into buying something by a marketing gimmick? Many of us I am sure (raises hand). How many of us have been on the other side of the coin and have written marketing copy that does this tricking? (Again raises hand.) I have tricked and been tricked. I have been guilty of making an event sound more fun than it really probably is. But that was my job.
What I have to watch out for is being tricked into buying something or signing up for something on the Internet that I don't really want. Or not really understanding the terms for a free trial period and then being stuck with the product or going through gyrations to get a refund. And that is not fun and a time waster.