I remember being at the top of a viaduct watching people jump off. The fear in their faces showed me what they were going through yet they still did it. Personally, I can't see the attraction. Enjoy life i say, rather than stress yourself up when you don't need to.
If you're looking for something daring why not do parachute jumping, it's a lot more graceful and you really feel you've achieved something. Nobody enjoys the bungee jump as it's over too quick to, it's just a case of saying I've done it!
Only do it if you want to