Have you ever taken one? If so, how long were you on the road and where did you visit?
I've been on numerous road trips throughout my life and, while driving long distances is definitely a grind, it's a special experience that you just can't get when you take a plane. Taking your own car also gives you the freedom of traveling wherever you want and not being restricted to a single tourist destination.
I'm actually riding home now from a two week road trip all over the east coast. We visited family who lives on the Chesapeake bay in Virginia, New York city, spent a couple days in Niagara falls and Ontario, visited the civil war memorial in Gettysburg, and stayed with my brother in Atlanta.