Which would be more cost effective: to buy 1 or 2 day park hopper tickets with water park and more option, or to instead buy 7 or 10 day park hopping with waterpark/more option, non-expiring?? We would only use 1 or 2 days this trip (not sure yet, but would base the number of day ticket bought when find out), and on a future trip would probably use 5 days.