I really depends on what you typically do. I thought it was totaly worth it since a 5X7 itself is @12.95 each. We get a few pics taken at every photopass person we see. Tons of pics of the 4 of us(which never happens because i am usually the one taking the pics!) and this time some cute graphics ones-like the girls holding Tink in their hands. If you get the CD, you have the rights to all the pics so you can print all of them and include borders and stuff.
You might want to do a search on Photopass CD and you'll see lots of threads about it. Of course, it is up to you of what you want to spend $ one. For me, this was a no brainer!!!