Food for thought. People who post here can actually verify from the website of what the sales people 'sales talk' you about. It is really up to you to do your homework and check if what they tell you is the truth. Go to the company website, go to the brand website, or google it. The answers are all there in the world wide web. Eventually, no matter how many years warranty is promise, the question is, will these company be still around after 2 years or so. They can just simply change their company's name. What 15years warranty, if the company has been around for the last 15 years, maybe we still can trust them for the warranty for the next 15 years.