Not as much a CW issue as the manufacturer's . You can buy an entry level RV or an upper end unit. They are, for the most part, going to have the same cheap plastic parts. I have had to paint my plastic exterior parts to minimize yellowing. We all know what I am talking about. The simple truth here is as long as we put up with it why should they up the quality? The profit margin on RV manufacturing is wide yet they still pinch pennies at our expense. And why not? We keep buying this junk. OK I'm gettin off my soap box now2.