I guess I just have different clients up here. Most changes that I get asked for are actually additions (whole other kettle of fish). I had one very very challenging client this past summer, but after a few trips back, and some aesthetic changes (intensity levels requiring re-lamping, and switching some downlighting to uplighting) he was very happy. Did I sacrifice my vision, art or reputation by changing the system to suit the client's whims? Of course not. It took me a few trips and some hours, wire, connectors and some fixture change outs, and in the end the client got what he wanted. It is his 3 million dollar summer home after all! I would have been a fool to get all pig headed and full of myself and walk off the job... and I would not have collected on the 50% remaining. Now he is happy, I am paid and I have sold two more jobs on the same bay to his neigbours... why? Cause the came over to see and the client REFERRED ME. 90%+ of my new clients are referrals and I like that just fine, it is very cost effective marketing. As for the 'cost' of these changes... get a good accountant to show you how you can move these items into your promotions budget. If the chages are really significant, then a change work order and a tight contract (which we have here) will protect you. Have a great day.