They are valuable for the appointive procedure. The two gatherings fill in as a quite decent method for getting similarly invested individuals together. In the event that they were not there, it would be substantially harder to distinguish great competitors, motivate them to keep running for office, bolster them.
They fill in as a contradicting element to the intrigue gatherings. In the event that it were not for parties, the intrigue gatherings would be unopposed. The gatherings attempt to pull individuals together in expansive coalitions. The intrigue bunches attempt to pull them separated on single issues.