It probably pays to do your research to know what the retailers "normal" price is on the item, prior to entering the show and comparing their "show sale" price. I do know that a common practice amongst some retailers (not just for camper trailers & caravans) is to make reference to a recommended retail price (RRP), then show an actual sale price much lower, giving the illusion the purchaser is saving X%. The usual reality is the item is never sold at the RRP but a much lower price anyway, which is usually the "sale" price that is being offered.
There's a couple of major camping / motoring retailers that regularly advertise 20-25% sales (off of RRP of course), but most items are actually no cheaper, or only slightly cheaper (5%) than what you can buy the items off the shelf any old day of the week. Good marketing ploy I guess if you don't know the pre-sale prices.
