In honor of 11/11/11, Amazon is having a set of lightning deals reflecting that. So far 2 of the 11 deals have passed, but there are still many deals to be had. The last deal was Sengoku Basara 3, which in a odd turn of events sold out. Later on there will be some other more popular games like Marvel vs Capcom 3. Either or it might be worth your time to check out their lightning deal page.