It all depends on where and when you are wanting to go. If we are under a time constraint then usually we don't even try for a campground. We drive for 500 or more miles then just stop at a truck stop, rest area or welcome center. This trip coming up will be like that. With the RV not going to finished getting fixed early enough we have to be on the other coast with a week or less. Not the driving we wanted to do but hey you gotta do what you gotta do. The granddaughter is headed to Space Camp mid June and we are her ride, lol.
Now when we went over to the UK Nov/Dec time frame it was after the crowds and we were able to just pick a place in the morning while having breakfast to see where we wanted to stop on our tour. Would never do that during season but then we figured going when all the towns are dressing up for the holidays was a good time go, lol.