Pete, just had a look at what a gold pass entails, “cloakroam facilities” ,a euphemism for a toilet that you can use, without standing in a puddle ? that and the “dedicated on-site parking with a separate entrance””, might be worth an extra £40-ea, as no one likes to queue for either of them; you might as well go all the way and pay for the buffet lunch, as the more of a “day out”, that you can make it , the less it feels like an “anorak/step ladder” experience.