Please note that as of January 18, 2007 the price of the Photo Pass CD has gone up to $124.99 from $99.99. The price is effective both when ordering the CD online from disneyphotopass.com, or when getting the CD burned at the park.
One important note though, if you order the CD online, any edits made online (cropping, signatures, borders, etc) will be included on the CD. Therefore if you want pictures with borders and signatures you can get them when you order the CD online.
When purchasing the CD at the park, you will only get the raw photograph, which means no edits, signatures, borders, etc. But for those who don't want to wait for the shipping and stuff, or take the time online to make those edits, this will be the way for them to go.
The Photo Pass CD is a good value when you have at least 12 or 13 photos that you would like to have prints of. Guests are encouraged to view and select their pictures either their last day in the parks, or online. The cost of getting those 12 or 13 photographs at the same time in a 5x7 format would cost you $120-130 for just one print of each. With the CD you obtain th rights and can print as many copies as you want on your home computer or take them to a local photo processer to have them made.