Monument Valley isn't really a national park per se - it is on an Indian Reservation. It has only one hotel, where every room has that very classic view - the view that probably most humans on the planet have seen at one time or another (being featured in various western movies, roadrunner cartoons, and even the most generic drawings of the stereotypical American West - go on, search for "american west" on google images and see what comes up!)
We thoroughly enjoyed Monument Valley - it has a tranquil magic that is not found in other places. If you ever find yourself with 1000 miles of this place, do make the effort to make the journey. It's worth it.