I used to run on the back roads at home- the views were more interesting and it was quieter out there.
My sis and I always took back roads anywhere we ever went- it was more of an adventure than driving on the highways.
Now I drive the back roads to take photographs- the real culture of the area is seated around the back roads, not the interstates.
By foot though, you can walk beside the river in the sand with bare feet and feel the mud between your toes. You can never do that in a car