When I first purchased a very expensive 14mm lens I wondered if I would really use it that much. After all, there is not a high demand in events for that focal length. Also, because it is so far from normal human perpective (about 100mm) it can look strange to many people. However, after practicing with a little bit I found it can create many stunning images that are simply unavailable to most people (because many popular cameras and lenses only go to about 28mm). Apart from the obvious benefits as an architectural lens, it can grab so much of a scene that it can place the viewer inside and event as it they were there, looking around.
I will be gathering my wide angle shots at some point and let everyone have a look. If you want to wade through a lot of other stuff, they are scattered throughout this site:
Photo BucketEnjoy.