It is also a myth that you will always get a better deal directly from the Builder. Many builders work with REALTORS because they know that realtors provide the market share of buyers exposed to the market. Working with a REALTOR in new construction will give you buyer representation, rather than working with an employee of the builder, paid by the builder. Protect your interests and allows work with a Buyers Agent.
If new construction is a consideration please contact me before you go to any new models. I will make sure you are registered and the builders agents will not be calling to hassle you.