Just wanted to pass along that Hotwire 4 1/2 star hotel right now selling for 89 a night during Boston audition weekend first of February is Westin Copley Place. (Look for Back Bay/Copley). Super deal! (hot deals)
Also if you are auditioning at BU there are several hotels that have special deals. BU should send a link to area hotels when they send your audition day info (they are very well organized). If you are auditioning at other Boston schools, such as NEC, Berklee or BoCo, they may have similar arrangements.