My opinion...+a nickle gets you almost nothing ;-).
We tend to keep vehicles for an extend time and find that they are quite reliable. Just have to keep up with basic maintenance. Changing fluids, and replacing those things that wear like shocks, belts, wipers, etc.
I try to keep things on a schedule so I am not putting out a lot of money all at once. Some I can do myself, some I need to take to the dealer.
If you find a Class B, in good shape, you can outline maintenance items needed. Create a schedule...most important stuff first and spread it out. Should be considerably less than payments on a new unit and the depreciation cost is less. Plus even new units require maintenance.
Some of the older class B units had some handling issues so you would want to test drive and find one that is enjoyable to drive.