Luckily for us, we were already buying 5 day parkhoppers, so the price difference up to the AP wasn't all that much. Since we already have 1.5 future visits planned, and at least one will be a one-day visit, just buying tickets for the three of us for that ONE day would actually be more expensive in total (5 day plus 1 day) than having the APs.
Hope it's as easy for you!