Haha, you people! Spoon got everyone whipped up

They could charge $10 for a demo of Halo 3, and I'd buy it. If this game is really coming out in November, think of how much money they'd make with people growing impatient.
HOWEVER, I don't see demo's as Bungie's bag. I think they'd rather just plug on through making the game. The only thing that makes this different, is that they will want to celebrate the 5 year anniversary, so they could do anything. How far in advance did they reveal H2's date?