[QUOTE=BelleoftheBall;940934]We are going on April and have 7 day park hopper tickets. If I can convince my DH to go back again this year how much would it cost us to upgrade?[/QUOTE]
I have done the math (I have a spreadsheet, but it’s in the wrong format to upload), and the AP is only a good deal if you plan to visit WDW 10 or more days in one year.
With 2009 rates, using Undercover Tourist, 7-Day Park Hoppers run about $45/day. The MYW 7-Day Park Hoppers are around $48/day. If you use your AP 10 days, you’re spending roughly $47/day. But if using the AP only 7 days will cost around $67/day - not a good deal at all.
If you’re limited to 7-days, it’s in your best interest to stick with the 7-Day Park Hopper - unless you plan to do some crazy shopping and really take advantage of the discount (15%, I believe). But keep in mind, with APs you can’t use DDP, and your Key to the World won’t function as your park ticket (then again, you’ll also lose those MYW perks if you decide to use Undercover Tourist).