They sure did, you just lightened my wallet! Thanks for the tip!
They had the 51in of the same model (720p) for 399. Could only notice the difference if I was looking for it, I have the 60in 1080p model (5500 series, Samsung too) from Costco. Plus, I am only about 5 feet from the screen. I use the 51in as my bedroom tv. 🙂