Exchanging the 7 day hopper with 4 plusses, some choices.
1. You need to find out the dollar trade up value of that pass as purchased using Marriott points, you won't until you get to the ticket booth.
2. The 10 day pass you want to trade to costs $415. incl. tax assuming they still have the rule that all attributes of the traded-in pass (incl. non-expiration) must be had on the new pass. The cost of three more days and one more plus and Disney Quest is the difference between $415. and the value of the old pass.
3. A 10 day pass with hopping and no plusses that you let expire will cost you $260. (308 with 5 plusses) and you save the 7 day hopper as-is for a yet future trip.
4. If you do only water parks on one (or two) days, the old 7 day pass will last 8 or even 9 days and you might not need to buy more passes now. (Doesn't work if you want Disney Quest but neither does choice 3)
5. A relatively expensive choice -- Use the old pass as-is now and also buy 1, 2, 3, or 4 days to finish your vacation with. Compare with choice 2.
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