AMEX Platinum and Retirement, AD Spouse

I want to get the Amex Platinum, such a great card with so many benefits. However I will retire from AD in a few years and my understanding is the annual fees are not waived once retired. So:

• should I instead have my AD spouse get the card and add me as a joint account holder so that once I retire and she is still active for another 15+ years we still pay no fees?

Thanks in advance!