Advice on buying USED motorhome

We purchased a 10 year old Monaco gas coach that is now almost 15 years old. The fit and finish and materials used are of higher quality than many and there are also many options, such as 10 gal water heater rather than 6 gallon. Large refrigerator, a ton of storage, closets and drawers etc, dual pane windows, insulation is better etc. Even though Monaco isn't in business as Monaco, it doesn't matter. The chassis is a Ford chassis and the appliances made by the same companies as everyone elses. When buying older, there is no warranty from the mfg, so we would never be dealing with the mfg anyway. As the advice usually goes, buy the highest quality used that you can afford. Find a floorplan you like and have a pre-purchase inspection. Oh, another thing we like - high quality awnings and aluminum exterior including the roof.