Support WBURMany Who Buy ACA Health Plans For 2019 Find Lower Prices And More ChoicePlay04:22Download AudioJordan RauNovember 23, 2018 ShareMore than half of all counties in the 39 states that rely on the federal HealthCare.gov exchange for ACA health insurance are experiencing a 10 percent price decrease, on average, for their cheapest plan for 2019. (Patrick Sison/AP)