Have you ever had the sneaking suspicion that there may be extra incentives motivating the sales staff at a RV dealership?  Perhaps that is why they were so convinced that one RV would work so much better for you than another?  Maybe.  Maybe not.  Regardless, you should be aware of what does and what does not motivate the sales staff of a RV Dealer.  Spiffs do provide extra motivation for most RV dealers and this podcast goes into more depth about them and provides examples.  There is also a discussion of a push/pull strategy between RV dealers and manufacturers.