My current workhorse, my 50mm f/1.8, has too much zoom for a 3/4 size sensor. It is impractical in an ordinary room. It's really good for those portraits, but lousy at getting disperse people into the shot.
This is also my first expensive lens. Eeek. Following this, I am likely to get a 3rd party zoom, as I don't see using a zoom very much. I also need to invest in a flash. All in due time.