All I have to say is, I'm glad I put bids on two! Really, the first one that arrived in the mail was in the Black Falcon's Fortress box, but it was Black Monarch's Castle in terms of the pieces! It was complete though, and for $50 not a bad deal at all.
I did end up getting the Fortress, and I love it. I have it set up with a couple other Black Falcon's modular sets for a really neat display. These sets really shine once you connect a few other wall sections with them. I had inspiration from the pictures JoJo posted. With all of the pin connections on some of the more recent LEGO sets, I was hoping that maybe they would return to this style. I guess I can dream.