I bought tickets planning to upgrade them to APs in April for our adult trip, but got concerned that ticket prices may be going up before then. We have a family trip planned in the fall that I could use the two tickets on, and buy my APs now, but was worried about the "valid dates". Called Orbitz first and they said to call Disney, called Disney and they couldn't answer whether or not they would take the voucher later, I'd have to call Orbitz, but they did say that I could pick up the tickets during the valid dates and hold on to them until our fall trip. So that is the plan now, still glad we were able to get in on the deal, but don't want to risk AP prices going up so I'll purchase those off of Way.com and put these towards fall.