I agree that some campgrounds may not want them because they are considered dangerous. I'll argue that, because my small 20lb dog is not a good people/kid dog. Our male shepherd we had was a people kid dog. I would never hesitate to leave him alone with kids. We now have another shepherd and she is good with kids and people also.
With that said they are easy to travel with. The only time you have to worry about them damaging anything is when they are puppies. After that they are great dogs that are very easy to travel with. You will have to stop for bathroom breaks before the dog.
I would highly recommend them, and skip the campgrounds that don't want your money! The amount of campgrounds with breed restrictions is low compared to the new that are pet friendly.