Having bought a new high end 5-er, I recoomend any potential buyer know what they will do with it and where they are going to take it. Yes, it is nice to have one to live in, extended, when you want to, but going to the beach with carpeting throughout is not a good proposition. Even my wife began to regret buying high because she wants it to stay nice, but our destinations are sometimes limited, or our precautions can put a damper on enjoyment. Older high end units almost always have full carpeting when laminate is more practical. And replacing carpeting which goes under the slides normally can be challenging. We are considering this now even though our carpets are like-new due to my wife's liberal use of roll up carpets.
Another factor to consider in all units is the type of slide mechanisms used. Many of the older high end units had problems with slides of certain types with the increased weight of quality construction and materials coupled with larger slide sizes. These problems usually came with mechanical screw-driven types, I believe.
