As a point of reference, I just landed the Madera for $80/night (started at $70, then $76, but no dice) for 3/27/09 - 3/30/09. Actually, my original dates were 26 - 30 and I didn't get a bite on anything in the Dupont Circle or Downtown zones at $80. Once I dropped the 26th and opted for a three night stay, I won the Madera.