No, not me, I prefer to take routes that are unplanned and unknown mostly. If I am riding just to see the country, I would not restrict myself to a single route. I go wherever the urge sends me on a whim. See a sign that says there is a cave, a small zoo, an unusual attraction down some road, and I will turn there, doesn't matter where I was going before. All the roads go somewhere, even those that go back to where you just left from. I carry plastic gas station maps of the States I am passing through, and a small road atlas.
I have seen too many things that I would have missed completely, and got pictures of many of them, to plan any trip. I've got a general direction to go, and so far, I have always got where I intended to go. Never owned a GPS. You can't get lost if you don't care where you are going. I sometimes have to be somewhere at a certain time, and then I take a plane or a train. Not crazy about buses, but I have ridden them too. If I am going riding to see the country, and the small towns along the way, then there is no specific place to be or time to be there at the end of each day. I am a lot older now, and I can't take the back-to-back 500-mile days, but I don't regret any of the aimless wandering that I have done.