But still much better than the flat $39/day they offered for a while when they took the one week deal off the table.
Also be aware that it's not as great a product as it used to be. Borders can only be added in the app and emailed to yourself one at a time. And when I last used it, the selection of borders was awful.
Have you looked at upgrading one person's ticket to an AP that includes Photopass?
Honestly, you're lucky to even be able to buy 10 day tickets. Most of us have to buy two 5 day tickets (or an AP) if we want to visit for that long.