Most people do not give a second thought about security. Until you have had an incident most never will and will go on the way buying with what ever purchasing instrument the bank issues them.
I think you over estimate the influence of the "geeky". Like I said time will tell and Apple Pay could catch on, fail or join the many purchase instruments soon to be available.
There have been several high profile breaches lately, people will care now. And I am certain that once CurrentC becomes a thing, Apple, Google, and all the major banks will have PR campaigns reminding us of how we are liable for fraud with CurrentC, and how the same companies who failed to protect our data multiple times now want to have direct access to our checking accounts.