There is a long running parent cooperative in my neighborhood. They used to have meetings at my coffee shop. I have rarely met a group of people who were as petty, backstabbing and bitchy as these people were.
We found a preschool in the neighborhood that with 5-6 kids taught by a lady with a masters in education that was reasonably priced. It was great. I like paying for things with money, I hate sweat equity situations. I don't mind trading coffee for services but It'd be hard to pay for pre-school like that.