One of the things about it is that it is so physically demanding. It’s like sitting in a paint shaker for 6 hours with a 2 pound weight on your head. At the end, you sleep for a couple days because of that combined with a 6 hour non stop adrenneline rush. And you know what pain feels like.
I had to get out of a truck in a San Felipe race to get it off a high-center/rock that jumped out all on it’s own and attacked the truck ;). This was after only 2 hours. Had a hard time just standing up. The guys that do it professionally are beasts.
Actually, that sounds like a helluva lot of fun. I am a bit twisted, though. :-)