I was looking at one of those "Great Gifts for Travelers" lists the other day. One item that caught my eye was a small combination luggage lock that unlocks with a fingerprint. I like to put a lock on my suitcase when I'm out of the hotel room during the day, but over the last few years I've had an increasingly hard time seeing the little numbers on the lock's dial when I want to unlock it. Being able to just press my thumb to it would be ideal.
Has anyone used a fingerprint lock? Pros and cons?