If you are considering buying then reselling, you might want to consider a used rental unit from one of the big RV rental companies. These units generally have detailed maintenance history,refurbish coaches before selling them and they are also custom built for rental use with more robust interiors and fewer luxury features to potentially fail. Also the depreciation hit on a used coach would be MUCH lower than the depreciation hit on a new coach.
Having said that be sure your math accounts for total cost of ownership, which in this case should probably include some type of extended warranty, either up front on a used coach, or calculate the cost of one into the back end when it comes time to sell. Otherwise you take a chance of the cost to repair a major mechanical failure completely blowing your budget.
p.s. in general I don't personally like the bare bones nature of these units, but see it as less of a detraction on a unit one would only use once and then sell, as they are one less thing to learn to work, this is part of the same reason they are not included on rental units, keep it all simple .