When you're a kid and you see a dinosaur movie you think that they're way bigger than they are. When I found out that the T-Rex stood less than 15 ft I was rather disappointed. Seeing Godzilla movies gave me false hopes in the average dino-size. Godzilla wasn't even a dinosaur!
The Jurassic Park movies have been a letdown IMO as they sequels continue to come. It's always the same. A single parent kid, a bike, adults running and screaming, and a whole lotta property damage once the buggers break free of their enclosures.