Other caves are completely different in the style. I have been doing a bit of caving up in the north of England and these caves a big and vertical - no crawling but instead lots of lowering yourself with ropes and climbing up again. These caves do not have many formations due to the way they where formed but they provide a more physical and technical challenge. Common for all the is the element of Exploration - the dilemma between wanting to go deeper and wanting to be able to get back out in safety. Why do people run around a field kicking a stupid little ball into a net.
Humans are strange.
I guess caving is about exploring the unknown. Apart from the deep ocean, caves represent parts of the Earth that are still unexplored. Ok, I haven't been in any unexplored caves yet, but even in mapped caves you get the feeling that you are on a great exploration adventure. It is a really cool feeling to crawl through mud, squeeze through tight tunnels and suddenly pop up into a huge chamber, decorated with stalagmites, completely quiet except perhaps for dripping water. Absolute essentials are a Helmet and a Head torch.