I used to change my arrangement of furniture often, but now, not not so much. Like many others have said, often a room has its own limitations that must be accommodated. I moved in to my current residence 4.5 years ago and except for minor changes to fit in a Christmas tree each December, the rooms have stayed the same. I think part of it is age and old bones.
The thought of moving furniture just for the sake of moving it? Naahh. I am more apt to rearranging accessories or seasonal touches to freshen up my spaces.