What is the big deal with the iSight and video conf software?

Ok, the web went wild over the new iMac with integrated. SO WHAT?! What purpose does video conf serve? What problems does it solve? Who uses it? It seems like a waste to me.
So I propose this… Drop a comment if you have used video chat software and what you used it for, or if you want to use video chat software and why. If you wish to stay anonymous, use a fake name and a fake email address such as fake@dodgeit.com
Prove me wrong in that video chat software has a purpose! Otherwise, I am permanently putting video chat software in the vault of wasted tech.
