Well, I think the way I understand this is that the LE was only $389, but that is moot right now because it looks like it is sold out again. So the price only applies to people who were able to order a copy already. Now, since it's a LE, the secondary market is trying to charge more, hoping that folks will REALLY want that signed postcard and/or the number on the bottom of the box!
And the Deluxe Edition, which will be released in July, is currently charging more for this but the price will probably drop by the release date (and I wouldn't be surprised if it ends up even lower than the LE was, but that remains to be seen!)
At any rate, I'm glad yours shipped, MB! I got mine quickly because I just recently started the Amazon Prime trial membership, but I have been ordering so much stuff from there, and plus they have Buffy streaming free for Amazon Prime members and I have always meant to watch that darn show, that I am considering keeping my membership for now.