From a pure PR standpoint, Bourdain is a genius. Or at least his publicist is. While some are turned off by his foul mouth and rebel without a cause style, millions love it. He's built an empire around it. He has found a gimmick and a niche that work to his advantage in his industry. Beats being a line cook at 54 years old. That's a killer job. I'll take flying around the globe, staying in nice hotels, and eating most of the food he eats anytime... save the Warthog anus. I'll leave that to Zimmern. But I find him entertaining. I've read a few of his books and enjoyed them. And I learned a little bit about his industry.
Dean, to many, is a lovable mom with an over the top southern bell and "Shucks Y'all" style that is also a clever niche. It works.
Both are entertaining in their own way. I would not mind owning their franchises.