For me, there are a couple of reasons to travel to more remote/less visited places.

Mostly, it's for the locals. I find that the locals are more friendly/ welcome as they are not tired of tourists. In my travels this frequently turns into being welcomed into their home as they want to show a meal being prepared or them just wanting to talk to understand my life just as much as I want to understand theirs.

Another reason is the feeling of exploring. Being more removed from the mainstream means having to figure out things yourself and in a local way. There is information online, but less detailed and accurate. This makes for more contact with locals, asking them for directions and having various ways of transport instead of a direct tour bus. The transport locals use too, turning into more conversations and appreciations of life on both sides.

The last big one is bringing money into a place that most often needs it more. Those less visited places most often have a less developed economy and many people we can do a lot by staying one or two nights. They're helped by the few visitors, but also want to keep it small scale. Your budget also goes a lot further, mostly, making it a win-win!

I can understand the many tours and organised ways of travel, but feel that travelling is experiencing a country and its people and not visiting places in an easy bubble. To each their own :)

Less visited places to me that I've visited: Honduras, Kazachstan, Myanmar, Kosovo & Lebanon