The following is a link to a PDF of the handout that Gary Banzer gives out at his RV show lectures. I thought someone might find it handy as a checklist of things to study and understand before buying an RV.
https://s3.amazonaws.com/tech.motorhome/technically_choosing_your_next_motorhome.pdf
https://s3.amazonaws.com/tech.motorhome/technically_choosing_your_next_motorhome.pdf