In a world full of people who read Wikipedia first and, generalizing some, actively look for other people's opinions via online reviews and reading up about the history of a place before visiting, I feel that the more unique experience overall be to show up and actively experience the place on your own outside the opinions of others.

I've traveled a fair amount now, and I think there's value to showing up someplace and letting it show you what you should know and experience, rather than letting the internet intercede between you and the world around you. I would add a fourth category, the person who shows up and finds something cool enough by walking around that they feel compelled to then read Wikipedia about it. For me, it would beat out the other three you posit, but that's a matter of taste I think.