I know this is an old thread, but every time it comes up, I always think: "If a a thief could even somehow steal all the biometric scans, what in the world could they possibly do with it?" The fact that Disney has this piece of information is the LEAST important piece of information about me they have. They have my name, address, CC, family's name, DD age, all in their system. If I was to be paranoid, I would first off not give them any of THAT...but I still would let them to the finger-scan.
The finger-scan is really sort of their to protect *you* the consumer. Yes, it's to prevent people from sharing tickets...but it also in theory could prevent someone who has *stolen* your ticket from using it. However, since so many people refuse to use the scanners...THAT benefit has been eliminated. So, by refusing the scan...you are empowering and condoning theft! Thanks a lot! (I'm saying this tounge in cheek here...don't flame me.)
SkierPete