I've become obsessed with stalking prices on trips I've booked, and have had great luck getting rates adjusted on cruises, Disney trips, hotels, car rentals, etc. We've got an ABD Montana trip booked for this summer. Do ABD trips ever go on "sale" (such that I should be checking prices regularly), or do they only go up? We did book right when itineraries came out, so we got a little price break from booking early. Didn't know if I might get lucky with some special pricing! Thanks!