Noteven, the Monroney Act only applies to consumer auto/truck sales, not RVs, jet skis, ATVs, etc.
Also unlike the automotive market, many RV dealers will only do warranty work on units that they sell at their dealership. Unlike auto mfrs, RV mfrs won't force a dealer to provide warranty work on a unit just because they sell that brand, they allow a dealer to only perform warranty work work on the units sold at that dealership. There were a few online "virtual" dealers with no overhead that were undercutting local dealers on price, so the manufacturers allowed this as a way for the local dealers to "fight back".
Personally I wouldn't hesitate to buy long distance since I do all my own repair work anyway.
Raife, I wouldn't worry about whether the dealer is making $1,000 or $10,000....as was noted here, if you think the price is fair for what you're buying, then buy it. Some may say, "Fools rush in...", but more apt for a sellers market like this is "He who hesitates is lost."
I get your point that you keep your vehicles a long time, but recognize that an RV is different...kids grow up and get bigger, and it's possible that you will find yourselves using the trailer differently than how you envisioned using it when you bought it. There is a decent chance that you'll sell that RV or trade it in within a couple years for those reasons.
Whether you'll get a better price in 6 months depends on whether demand softens like it usually does in the winter. Having seen the 3 TV network affiliates here in NY all run segments on their news magazine shows about how RVs are the perfect vacation option, I'm hesitant to say that demand will be lower over this winter.