M.N.
Sometimes you have to do what is best for the sum of the family instead of the parts. Moving teaches kids to bounce. He is old enough to write his old friends. Your financial stability is just as important to your son as it is you, even if he may not be old enough to realize it right now. And with the extra curricular activities, assuming that these are things he enjoys, he will take them up at the new school right? Instantly putting him in circles with kids he has something in common with.