This deal has ended.
Update: This deal is over. The price has increased to $39.99 Today only, Amazon has Batman: Arkham Asylum (for either XBox 360 or PS3) on sale for just
$29.99 $39.99, the new all-time low. This new installment in the Batman video game line features villains like the Joker, Poison Ivy, Harley Quinn, Victor Zsasz, and Killer Croc. Shipping is free with no sales tax (except KS, KY, ND, NY, WA).