Newell builds a stunning coach. Have seen many of them myself; they are at a great price point and are high quality.
It seems that the company has been reluctant to market the brand name on the internet, especially, and that has resulted in many potential new and preowned buyers from buying...resulting in lower demand, lower prices.
This seems to be a classic case of thinking that coaches can be sold at RV shows and in industry magazines. Focusing directly on buying customers is always the best approach...but you have to know where they are.
Marathon spent a ton of money advertising on the Travel Channel; perhaps they have lots of cash to burn? Finding the target market these days is the most important thing.