In new subdivisions where new spec homes are being constructed, pay attention to the inventory in MLS, but also drive all the streets in the subdivision and note the FSBO signs. Call the sellers and find out their price.
Weigh the options of buying an existing home, vs. buying a vacant site and having a home built. You know what you will pay for an existing home, but there are usually cost over-runs, in addition to financing costs for new construction. Compare the differences.