Have you done an advanced search on RV Trader?
By using that feature you can narrow the search to the exact make, model, your looking for, and maybe you can find a mom and pop who will treat you better.
Also, with the big dealer, get ready for the add ons,
Shipping $1500 to $2000
Dealer prep $750
Documentation $399 to $799
PDI $350 to $750
Many small local dealers dont add all these horecrap fees. They may price their unit slightly higher, but when they add all the extras at the big chain stores, it's seldom still cheaper.