Is it worth becoming a Citi / AAdvantage Executive authorized user for Admirals Club access?

If you're looking for a less expensive way to get Admirals Club access, becoming an authorized user on the Citi® / AAdvantage® Executive World Legend Mastercard® (see rates and fees) is worth considering.The card charges $175 to add up to three authorized users, so the effective cost is under $60 per person if all three authorized-user slots are used. Each authorized user gets their own Admirals Club access, though they don't receive all the benefits available to the primary cardholder.Let's break down what you get as a Citi / AAdvantage Executive authorized user, how it compares to an Admirals Club membership and who should consider this option.How much does it cost to add a Citi / AAdvantage Executive authorized user?The Citi / AAdvantage Executive charges $175 per year to add up to three authorized users. Any additional authorized users cost another $175 each.That means the effective cost per person depends on how many authorized-user slots are used:Number of authorized usersTotal fee (annually)Cost per person1$175$1752$175$87.503$175$58.334$350$87.505$525$105If all three authorized-user slots are used, the effective cost comes down to just $58.33 per person annually.For compari...