Nothing wrong with being a tourist at times. Holidays are an excellent excuse for making photos.
The idea that you don’t see a place well because you’re taking pictures all the time, is one I don’t quite get. It’s rather the reverse – looking all the time, absorbing the scene. Holiday photos come from the bewildering first encounter, that awe. They may seem banalities, but they capture a sincere first impression, full of amazement and discovery.