Thanks for confirming sexual appeals in ads don't sell brands Chong agreed, but said there are advantages. “I don’t think it’s very effective, but it’s cheap and easy, and it’s slightly better than the balloon dancing guy because at least the girls can speak,” he said. And while recent studies suggest it may actually hinder absorption of the brand message, Korea is in lockstep with the rest of the world in the continued use of the favored old concept.