I've looked over the other stores, and I can see that Staples aren't showing the lower price yet, and Walmart show $229, not $199. Curiously enough, Walmart are also stocking the NC refurb for $149, and I personally think that's a better deal.
I can't find the Nook Color listed on several of the other chains that are supposed to carry it, so I can't tell you if they dropped the price. You'll have to check in store. But my guess is that a lot of the retailers might drop the price in the Sunday ads, but they might not do it until next week.
But before you run out and buy the $199 NC, please remember that B&N are going to announce a new $249 Nook tablet on Monday. It has a dual core CPU, more storage, and it's shipping on 16 November (probably). I think the extra $50 it costs is worth it. Of course, if I were going to get one I'd get the refurb, but that's just me.
So here's one more piece of news that I won't be reporting on Monday, but I'm still going to NYC. I'll be at the B&N event bright and early, and I will try to liveblog the presentation (3G permitting).