Drive-aways used to be a great way to travel back in the 1970s. My Aunt in Michigan used to drive one-ways and fly home on a regular basis. People would move across country and need to get their second vehicle out west. Got to drive an early Honda to San Fran from here in Delaware. Those folks were well-off, and paid gas and tolls, AND a one-way ticket back (open date) so I got to explore out there for a couple weeks.
Not sure how to find those deals today.