I just received an e-mail from The Wedding Shoppe in Berkley that they're sale is lasting through Saturday.
Everything's an additional 10% off, including sample gowns that were already marked down 30% - 50%.
Appointments are necessary. Their number is 248-541-1988. I've never been there but I heard great things, specifically about their alterations.
Hope this helps anyone who is still looking for their dress!