Still worth it if you fly with any frequency as it gives you automatic TSA pre-check for U.S. departures as well as expedited reentry from overseas travel.
Actually the $100 fee for Global Entry is good for five years. After that you have to renew for whatever the fee is at that time.
Thanks for the clarification.
We have to go to San Diego, right to the border crossing for the interview. Should be interesting. Other locations were booked.