I have changed mains a lot and I know the feeling. You change and then you realize you have to raise professions again and this was back when it was really expensive,you lose your exalted reps, you have to regear, etc. Its become less and less painful over the year but I can say that raising fishing and archaeology was a true pain in the ass ...oh and cooking. Now those I wish were account wide. They don't take long to cap but it feels like watching paint dry when there's so many more interactive things to do