I thought most airlines were doing away with the Saturday night stay requirment. What is the purpose of this fare rule. I can fly to EWR, do a same day turn and the fare is much higher then if I stay over Saturday and return Sunday night. Makes no sense, Saturday nights are usually the slowest period for airlines, and Sunday nights are busy so why require to stay over and if you don;t charge alot more when you are filling alot of empty seats.