As a child, I was brought up in Salcombe, Devon. It is very beautiful and unspoilt, although it is very expensive nowadays!
My views on visitors are changing. It is interesting to compare Salcombe, Dartmouth and Kingsbridge in Devon. Those that have attracted "up market" visitors seem to be thriving, whereas nearby Kingsbridge seemed a bit run-down further up the town. I hope I caught Kingsbridge on a bad day as it deserves to do well.
It is very important that these places do not lose the character people come to experience. Change always happens, but I hope it is still as beautiful for years to come.
One of the best YouTube videos on Salcombe I have found is attached.