My DS is going to freak! I just went and ordered it on Amazon.
It is listed for $40 and that is the price Toysrus is listing them for as well. But they are available for sale now on Amazon now. I figure the Lego Star Wars Advent is going to be hard to get your hands on closer to Christmas so I ordered it now. There are people selling them for over $60 on Ebay already.
http://www.amazon.com/gp/product/B004Z24R8K