I have 3 old hoppers with 7 unused days on each of them. 4 of us (DH, DD16, DD10 and I) are going down this summer and plan to do 3 days in the park. I could just buy myself a 3 day hopper, but is it more economical to buy a 7 day non-expiring so we all have the same number of days to use in the future? The problem is I don't really want to lay out the money now.