Yes, consumers should buy from local farmers markets in an effort to support the local economy. Too often, consumers buy from big chain stores that ship the money outside of the local economy, depressing the local economy and making more people poor. This could be alleviated if more bought from local farmers.
Buying from local farmers markets saves transportation costs for goods bought at big box stores. It also keeps dollars in a local economy as opposed to supporting farmers in countries such as Mexico and Brazil. Local farmers markets are great ways to see where food comes from and offer fantastic teachable moments for children.