More steps to extruding using multiple steps. With molds, you stick the mold onto the nozzle and you're done. Just think about building a workbench if you were

More steps to extruding using multiple steps. With molds, you stick the mold onto the nozzle and you're done. Just think about building a workbench if you were going to build it out of wood vs a mold. More screws parts and steps.