There is a 10 print package, but that is not discounted. If you only want about 10 pictures, then the all inclusive is not for you. We pre-bought the all inclusive package, and went home with over 95 pictures from our 7 night cruise. My family took over 1000 pictures of our own as well, but of the final 50 that I liked enough to print out once I got home, over 20 of them came from the package, so to me, it was worth it.
OP,
@scrapycruiser is correct, you can get a 50% discount on the second cabin. You don't need that if your children are young, but if they are your adult children (maybe with their own family), this can be a good option for you. Remember, anyone in any shots you are in will already come in the first package. We traveled with my sister's family, so we went for the second cabin discount and split the cost. One thing to realize is that you can't buy this second one in advance, only on the ship. (It took my a lot of searching before I realized that!) Which also means the 50% discount is in place of the 15% discount for the second cabin. Still worth it for us, though.
Another question- I am cruising with friends, and we will be in a lot of pics together. Can we prebuy the photo package and then when we board can we get another for the 50% discount? Our reservations are linked.
Remember, you have until the last full day of the cruise to cancel your package if you see that you aren't getting enough good shots and would rather get a smaller package, individual photos, or none at all.
Enjoy!