What I like about the 3-day hopper Costco pass is that - my understanding is - you can use it ANY time between now and 12/14 - i.e., use one day this year, 2 days at some other time - even next year or the year after - not all 3 days w/in a 14 day period.
I realize this doesn't answer your question, chimo; just making a separate point.