I currently have a 10-year-old Kenmore dishwasher. The cycle that we use the most, smart wash, has stopped working. In other words I press the button and nothing happens. If I press another button for another wash I can do that wash. However, sometimes I press a button and a different button will light up. I do not have service contract on this appliance. Is it even worth trying to get a 10-year-old dishwasher fixed? How much should I expect to spend on the dishwasher new? I do not need top-of-the-line but I would like something that is efficient and quiet.