Extended Warranty April 17, 2019, 09:45:43 am We are currently in the process of purchasing a 2017 Cornerstone. We have been asked whether we want to purchase the 6 yr or 5 yr extended warranty. As it is pricey, we wondered what other owners thought. I know It’s a gamble either way on needing it, but just wondered what other owners thought. This is our 1st Entegra Coach.