Pretty sure window MSRP numbers are designed to make buyer feel like they got a great deal when the sale (today only of course) price is +- 70K'ish
Simple buyer's rule is; know the street value and that usually falls in the 60% of MSRP range for non-unique builds like most of the major RV manufactures. Sort of like how far into 40% hype, the above street value, are you willing to pay for the new RV causing drool today!