If you go on Priceline and choose 4 Star, Copley, Downtown-Charlestown and put in a bid of $80 you should be able to get a room at the Copley Plaza in Copley Square (A 4 Star Grande Dame) or The Wyndham on Broad Street within walking distance to everything. (Another 4 star) I just boooked a room at the Wyndham for this Sunday (4/8) for $80!