"I wonder why so many of these expire in 3 days, aside from the 1 deal that runs until 11/21. Maybe there's a new wave of deals coming."
These are to counteract the black ops 3 PS4 buzz. Then a push for Fallout 4 and Tomb raider. No doubt then more deals leading into Battlefront. Then the black Friday craziness.
I have a feeling Halo aside, most people have started buying XB1 based on the deals, rather than a steady sales flow, with peaks around all of the big games. I'm not sure how healthy this will prove to be going into 2016.