OP here. There are two main reasons for moving:
1. The house, and its condition, feel like a tremendous burden. We've renovated before, and are very used to what's involved/the cost. It's the type of house that you have to work on continually to maintain it.
2. The environmental factor that I can't give specifics on. It's just something about the neighborhood itself (not any of the people) that is a great annoyance.
I guess what I really want to know is: how much would we lose financially to buy peace of mind?