We are new at "streaming" also. We share concerns. The problem my wife and I have with a new AS (besides the cost of course) is that we want to personalize everything we owe, but are not sure what we ultimately would want or need. Living in one for a period of time will tell all the things we want and need. Plunking down a lot of money for a new one does not make sense until we know exactly what we want. Some changes we are sure of, like lounge chairs instead of bench seating. We are not even sure what size would be ideal for us. So we decided to buy a good used one, do some of the changes we wanted, then evaluate whether this would be desired in a new one. If we do not like the streaming life, then it will be sold for hopefully no loss.
The trouble is we got more than we bargained for. The floor at the rear was rotted due to water leakage so we did not plan on replacing some of the subfloor. (I'm at the stage of cursing Airstream). I sure hope it will be worth it.