http://www.gametrailers.com/episode/gametrailers-tv/96?ch=3&sd=1 - start at about 12:00 onwards (let me know if you can't find it)
Geoff Keighley interviews Don Mattrick.
Geoff - Coming out November 4th, you're not saying anything about the price on it right now, right?
Don - We think we wanna get more coverage (joke)
Geoff - *Laughs*
Don - "and ah"
Geoff - "you know the price right now?"
Don - "I know the price *smiles* and I know I'll get another chance to speak to you about the price .. which is always good."
Geoff - "When is that gonna happen then?, people are trying to save their allowance!"
Don - "Sometime between today and launch we will have that press event"
Geoff - "ok"
Don - "and I'll make sure that I get it on your calendar"
Geoff - "ok, are we gonna like the price though?"
Don - "uhhh, I think you are gonna .."really" like the price"
Geoff - "are we gonna be surprised at how low it is?"
Don - "uh, we sat through the other competitors press breifings and people were very please with our position, I like being with Microsoft this holiday."