I disagree with your premise that if dragons did exit that they wouldn't interest people. I haven't read through the comments, so I don't know if anyone's addressed this yet, but there are real world analogies that disprove your point. Sharks for instance. Sharks are very real, and you can take a trip out into open water to spend time with the more dangerous varieties if you wish. The Great White that was at the SF aquarium generated a great deal of attention. People still like zebras but aren't usually as fascinated by them. The reason is that sharks are dangerous. Dragons, one would imagine, would be even more dangerous. They would probably attract even more attention.