For reference, I bought my 2015 Jayco in January of 2015. We ordered ours with the interior colors and exact options we wanted. Our price was 35 or 36% off Jayco's published MSRP (I can't remember exact numbers now). I had gone to many RV shows, knew exactly what I wanted and knew the MSRP cost of the options. I literally sent emails to multiple dealers with the exact configuration that I wanted. I'm a pretty easy sale... no hemming and hawing, no long days of trudging through different models, no haggling over colors, etc. A couple minutes of paperwork for a known entity (on the dealers free time, none the less) for an easy profit. My salesman ultimately decided to take a reasonable profit on their part for minimal amount of work on their part.
Freight is a legit cost. Title fees are mandated by your state. Sales tax is theft. Other fees are just profit for the dealer. I don't really care how they break it down, I just want to pay a fair price for my camper.
Now... that was winter 2015. It was bitter cold those couple of months and sales were understandably very slow. Fast forward to summer 2020... you are not going to get the best deal in this environment. Interest rates are quite low, supply is low and demand is very high right now. If you want to camp this fall, you are likely going to have to spend a little more. If you can wait for this push to slow down, you'll see your bargaining power getting stronger.