No worries. Seeing that you're from Chicago, I could understand that you probably have a thing for Mies van der Rohe. I've built several of these Architecture sets with my son's existing pieces and instructions I've found on the Lego.com. To me, this set didn't look very dynamic as a Lego building project.
The bricks in this set are really unique. For this price, I'd get it. But, the deal is dead.