It's a common tactic. Ebaumsworld and Newgrounds both got popular 15 years ago through the same methods.
"I Want My MTV" by Tannenbaum and Marks is a great book. Think of it as the bible of what a successful marketing execs wants to achieve.
It's not a common tactic. It is the BASIS of consumer culture. Give people what they want. Target their senses not their minds.
It's how you get everything from the global spread of Pepsi to McDonalds to Starbucks to Apple to Hollywood to the Kardashians having 200 million teenage girls globally wanting to grow up to be like them.
Consumer culture is based on giving people what they want. And labeling it Freedom.