Amazon offers its Prime members Batman: Arkham City Game of the Year Edition for PlayStation 3
or Xbox 360
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $4.98.) That's tied with our June mention as the lowest total price we've seen for either platform. (It's also a current price low for both platforms by at least $7.) This edition includes the Catwoman pack, Nightwing bundle pack, Robin bundle pack, Challenge Map pack, and Arkham City Skins pack.
: Note that both versions are temporarily out of stock, but can still be ordered at this price for delivery when available.