The true potential of TouchID

I've been thinking about what the real use case for TouchID, which on the surface is used primarily for security. Now that TouchID has been in use for a while, other uses have been created; however, I don't think that any of these uses actually touch on the true potential of TouchID.

Tech Predictions: The inevitable convergence of iOS and Android

Nerds love arguing. I say this as someone who loves arguing, and someone who lovingly self-identifies as a nerd.