No rules for me. Sometimes, you drive 800 plus miles in a day because the destination is what it's all about. Sometimes it's the journey. Why drive when you can ride a Bicycle? I once did a bicycle/camp trip from the tip of Scotland to Lands end in England. That trip was all about the Journey. We often have periods of time where many of our trips are about themes. Once it was to climb to the high point of every county in the state. For a couple years we sought out caves to explore. Sometimes it's about climbing the mountains rather than looking at them from below. How many folks invest in checking out the view from the top of the Grand Teton rather than just taking snapshots from the road below.
Of course there is a lot to be said for motel camping too, which we have just returned from this weekend. Sometimes it's just simpler and more convenient to stay in a motel for the adventures you have planned.
Finally, we tend to take cruises every now and then. Why drive the RV yourself when someone else can do the driving while providing rather nice amenities. In the end, the only thing to understand is that it's all about what sounds fun at the time.
