When will you be going again after the November trip? It might be better to let your passes lapse and then buy new ones on your next trip. For example, if you're not going again until January, that $40 discount is less money than 2 months of a deluxe pass going unused. Plus you'd then get from January-January on your new pass, instead of basically January-November because you didn't use it for the first 2 months.