I don't understand the 'pffft' attitude towards LiveView. It is OBVIOUS, and also 100% clear that it is not a necessity, and a bigger and brighter viewfinder will go miles ahead of a 3" lcd with LiveView... 95% of the time.
But photography is not about 95% of the time. LiveView is a great tool, ESPECIALLY when the screen flips out (I personally do not see the point of LiveView on a regular fixed LCD). It can open up a wealth of possibilities; which allow you to do things like lay the camera on high or low surfaces without having to get on the floor or climb up things just to see in the viewfinder to frame the shot. These awkward shots can be taken quicker and more fluidly, which may allow you to capture something you otherwise would have missed.
A further point I would make, is the ability most LiveView equipped cameras have of being able to zoom in on the LCD to about 10x magnification to allow you to easily focus the image on the detailed areas of the image. For those of you who've shot landscape at night, you'll appreciate the difficulties with focusing and composing. LiveView can make you life a lot easier.
Just my 2p: it's not a necessity, but it's damn useful!