Its in the best interests of every manufacturer to put every possible option on an RV before it ever arrives at the show. And its in the "best interests" of every curious visitor (who will never buy an RV) to poke, prod, twist and slam everything they can touch. For a potential buyer, a camper show is for seeing what is available and how things are arranged.
I went to several shows before I bought my 'C', but I left my checkbook at home. Then I ordered mine from a nearby dealer with what I wanted on it. If I had it to do over, I would have ordered mine without an oven. As it is, I use it to store my Cuisinart toaster/oven/broiler when I'm on the road. Pretty expensive storage.