To gather experience and memories is my goal.
Therefore I need no more than a destination.
My gps gives me heading and distance; a general map an understanding of the terrain.
It is probably more wandering than traveling.
What gives me pleasure is finding the route, next the experiences, encounters, discoveries along that route.
I will miss opportunities and sites that would have interested me.
I will surely loose time while backtracking because the road is blocked.
That will affect morale temporarily, but never outweigh the good stuff.
In the end the question is, did you reach your goal?