Rv show what to expect?

I'm sure this doesn't happen all that often but we were at an RV several years ago. Dealer had a flyer on the counter with the MSRP and the sale price. Wife and I were checking things out when I opened a drawer in the kitchen and low and behold there was another flyer in there for the same TT. Difference was that the MSRP was lower. JMO but unless you've shopped like crazy and no the prices pretty good I would just use the RV show to compare brands and floor plans.
Most RV show ads list all the MFG's that will be there. You can go to their web sites and look at all the trailers they sell and already have an idea of what to look for.