Suit discounts don't happen very often and buying online makes the tall sizes available. If you were looking at getting a BR suit, this is a somewhat slick deal, IMO.
Unfortunately, it does not apply to Monogram or Heritage suits.
40% off women’s dresses | 30% off Men’s Suits: Offer valid 03/12/2013 from 12:00am ET through 11:59pm ET at Banana Republic online only in the US (including Puerto Rico). Not valid in Canada, at Banana Republic stores or Banana Republic Factory Stores. Discount applies to women’s dresses and men’s suits only, not to GiftCards, packaging, shipping and handling, applicable taxes or BR Picks, Banana Republic Mad Men Collection, Monogram, Heritage, and men's blazers. No adjustments on previous purchases. Not valid for cash or cash equivalent. Cannot be combined with other offers or discounts including Gap Inc. employee discount.