So we have all had a very cheep holiday for many years but now he's charging realistic prices, had it only been a 3 day show & open to the public on each day then yes I agree that we shouldn't pay to bring our vehicles but its not a 3 day show.
Its a weeks camp open for 3 days to the public, the rest of the time the organiser is paying for security, toilets, medical tent and hundreds of other things for us to have a cheep weeks holiday.