Thanks for the update on this! 
I'm actually pretty stoked... Amazon was of course expected (and is appreciated by me personally) and the dept. stores isn't a great shock, but I must say adding Sam's Club is a nice touch for me.
I don't have significant purchases at Sam's, but once the 4th quarter starts I might have to look a little harder at their selection. I'm the first to admit that you must be careful, but on a handful of items I used to get from Amazon I've actually saved enough to justify my membership fee (without even considering the rewards from their credit card). My local Sam's is next door to Wal-Mart, so it's not out of the way to go there for only a couple of items.