Is it worth while listing campgrounds with difficult access.

We frequently go to a KOA campground, as it is close to out-of-town family. It's one of those CGs that tell you to ignore the GPS,and follow their instructions, (Red Flag). We just have a 24ft TT, so no problem. Several times we have left the CG, and upon return see a Giant bus conversion or TH. I swear they must have been dropped by helicopter as the roads to the CG were so narrow and twisty! I salute those drivers!