That is a very good question. My thinking is updating in case forgotten, or lost card, maybe USAA determined the approximate life expectancy of the magnetic strip, or ultimately, advances in the technology necessitate. ('?')
Thank you for your feedback. There are several reasons (as listed in the user reply) from wear and tear to fraud protection. Criminals can get their hands on card numbers more easily than they can expiration dates; if counterfeit cards are created and don't have a valid expiration date, the card will be declined.
I don't know about you, but personally, I like my new card because typically by the time it comes my old one's magnetic strip is usually a gonner!
