What about video?

There has been an enormous proliferation recently of churches that are starting satellite campuses and instead of having a Teaching Pastor on campus, are using a video feed of the Pastor from the main campus to deliver the message. I have spent a great deal of time over the past couple of years thinking through this concept. I am finally beginning to come to a few conclusions in regards to it. I would be curious to hear your thoughts, however. Below is a video from Pastor Mark Driscoll, of Mars Hill Church, explaining why their church has joined this wave of churches using video as a major means of communication. I'm curious to hear your thoughts after watching this video.