Second-hand or not, $1 for a reader isn't bad going.

You know that code reads the Credit-Card info from the mag-strip?... So your Door Access automatically debits their card? Great idea! Gotta nail one to the Men's room door for a giggle...

I was going to start a competition for a bottle of Champage... can anybody swipe a Card thru a reader so fast that my code couldn't catch it... but I drunk it instead...