FWIW - I just ordered a new Newmar from the factory going through Camping World. The final offer from them included the delivery charge, full fuel which could be 80 gallons, full propane, full PDI which I will compare to Newmar's, staying in their campground for checking out the unit. Also includes 3 years in CW's elite club whatever that means. I could have opted to pick it up myself at the factory for around $3,500 but chose not to. Newmar assigns a tech to you for up to five days to address any and all issues that you may find.
I'd check elsewhere before agreeing to that much money for something they are supposed to do anyway.