One thing i like while driving is seeing the topography change. From SLC to Moab, I went from a summit, to more desert but with different mountains starting to form, to the the rocks of Moab as i started to near the town.
I did take a small side trip between SLC and Moab. A guy in an SLC visitor center marked me up a map. He knew everything. He suggested a small scenic byway called 9 mile canyon road. Pretty nice. In the middle of it, was some picnic area that marked the location of an old ranch or something.