Well, my prediction was squashed. Estimated sales have already stated that Halo 3 have reached 1.8 million sold in the first 8 hours.
I just hope this hurrys up and ends. I'd like to not have every commercial on television being HALO 3!!! related. :P
Edit!: 1.5 million of that was the pre-orders. Those have already been cleared out and GONE. The only additional purchases for this opening day so far are just over 300,000.
Ask me how to turn a Rottweiler in to a Dodongo and I'll tell you the story of a lifetime.