Local applies if you have a local dealer with a good reputation. In my area there are non I would trust to do the setup or any warranty work.
A small local dealer is going to have a far smaller selection than a larger operation and has to cover their overhead with smaller units sold. The small local dealer is more likely to require a large deposit and then special order the RV for you.
Key is checking the reputation of dealers before you buy in as many ways and using as many sources as possible. There is no single source that does it all.