FWIW, when I bought my Class A I used a different type of logic. I figured I would use it for 5 years during the winters driving around looking for a snowbird place to winter fulltime at. I would then buy a S&B once I found it.
At the end of 5 years I would sell the Class A for half of my initial investment (using the 50% rule of thumb.) I then decided on how much money I was willing to throw away on that project. I doubled that price and that was my buy in point for a Class A. Turns out I had the rig for about 6 years and got back 60% of my investment (not counting repairs and updates.)
So part of me always want to say how much money are you willing to throw away? My Uncle Donnie didn't think like that and drained his pension to buy a Class A in 1985 to snowbird in. Less then 20 years later it was pure junk, and he was forced into staying north and eating a lot of soup. During those 20 years he saw some great deals on condos that would have appreciated but didn't have the money for the buy in.
