What about Niagra Falls? You'd need a car, but I bet you could get a cheap one. There have to be some great hotels and rates can't be that high right now. Other thoughts are Napa or Arizona. Look at any specials for Sofitel--MIA is gorjus hotel and I agree about Crowne Plaza MIA, too. SEA/casino destiantions using light rail from Seatac--$5.50 RT to DT.