To be honest, I don't think any of us have much right to say what should happen to the sections we don't use. I only use a few sections of the forum so I don't see how I can make a fair judgement on what should happen to the rest and I know if the sections I use most, were taken away/moved because of the opinions of people who have no connection with them, I wouldn't be too happy.
I think the best method of finding out what to do, is either create individual polls within each of the sections asking that people only respond if they use that forum (you'll get a few who don't but anyone who sees the poll in a particular section is kind of a user of that section by definition) OR just ask the moderators of each section what they think would be best based on their day to day observations of moderating each section.

