If you want instant gratification, just buy it locally. You just never know when you'll get it if you pre-order from online sources, but must have it next Tuesday.
Chris: You are going to see some VERY good prices at your local B&M stores on Revenge of the Sith. Prices that are better than what Amazon has right now for pre-order.
Alls I know is I ordered mine from Amazon.com because I wanted the free shipping, with my preorder for Batman Deluxe Edition. And, I will never do that again! It says it will ship on Nov. 6th and I should receive it by the 12th. That adds almost a month onto my wait for Batman. I could have gotten the single disc version of Batman locally for $12.99 and I am sure there will be all kinds of special deals on ROTS.
I wouldn't worry too much about it. I pre-ordered B.B. with something else from Amazon to get the free shipping. The estimated delivery date they gave me was like 10 days after street date, but I ended up getting my delivery the day after B.B. was released. So hopefully, you won't have to wait too long either.
I wonder if Toys R' Us will offer ROTS for $9.99 like they did with AOTC this time around.
I have to say, maybe I was wrong. My order shipped yesterday and I received both the two disc "Batman" and ROTS today, on release day. I can't complain. Amazon did all right by me.