From the municipal point of view, the advantages of COAH's administrative process included the use of a formula to calculate fair share that might produce a lower obligation than the court would impose, the availability of the regional contribution agreement to reduce the number of units and the ability to determine where in the municipality that affordable housing ought to be developed rather than being forced to permit a development as a reward to a successful builder-plaintiff. Those municipalities that chose not to participate in COAH's administrative process remained vulnerable to exclusionary zoning lawsuits and the prospect of the builder's remedy. The disadvantage would be that a participating municipality might be required to zone some land in a manner that extra housing would be produced. Some municipalities, believing that the likelihood of facing an actual exclusionary zoning lawsuit was low enough, took their chances in not participating.