Imagine visiting an exotic part of Asia and seeing all the ancient landscape features there. Of course, there is new development, but it really is a very old part of the world. Some very old features have been in use for hundreds of years at least. Like any exotic location, it is hard to make reservations on your own. Butan is a landlocked country where only so many people speak English. A tour guide can set you up, so see what packages are offered for a Bhutan road trip.
All you have to do is work with your agent. You will largely know what to expect when you arrive. Accommodations and food and the tour bus itself are all arranged by pros who know how to bargain with local vendors. There is no need to haggle with the locals; all you have to do is enjoy the countryside.