I booked a free dining trip to WDW last December, no more of a discount since free dining was the discount, however there are several extra perks for booking via AAA that in or opinion made it worth booking with them:
2013 Preferred Fireworks Viewing Location - When your Clients purchase select AAA Vacations packages that include a
Disney Dining Plan, they may enjoy a special viewing location for Wishes Nighttime Spectacular, the biggest brightest fireworks extravaganza in Magic Kingdom Theme Park history.
Advance reservations, reservation voucher and valid Theme Park admission required; one viewing per person; space is limited and subject to availability; fireworks schedules vary by season and certain block-out dates apply for this benefit during holiday periods. Inclement weather may affect outdoor entertainment. 2013 block-out dates include and are not limited to: 1/1/2013-1/2/2013, 3/24/2013-4/6/2013, 7/1/2013-7/7/2013, 11/24/2013-11/30/2013, 12/22/2013-1/2/2014.
Exclusive! Disney's Story Time Experience - When you purchase select AAA Vacations packages that include a Disney Dining Plan, you may enjoy a special storytelling experience which features a character from a classic Disney animated feature film that takes place at Epcot®. Experience is available on Mondays, Wednesdays and Thursdays at 10:00am, 10:45am, 11:30am and 12:15pm.
Advance reservations required at least 24 hours in advance. Available one time for the entire party booked on the package. Voucher and Resort ID required at time of redemption. Must be redeemed during the Package Validity Dates. Reservations are subject to availability. There is limited seating. Not valid for admission to any park. Voucher is non-transferable. Lost or stolen vouchers will not be replaced. Voucher may not be redeemed for cash in whole or in part. Offer and entertainment subject to change without notice. Performance days and times subject to change without notice; block-out dates apply.
Exclusive! AAA Vacations Diamond Savings Card - A special card offering savings and values of 10%, 15% or 20% off at many participating dining, recreation, merchandise, tour, and spa locations throughout the Walt Disney World Resort (one card per package; nontransferable and void if sold).
Exclusive! AAA Diamond Parking - Convenient Preferred Parking spaces at all four Walt Disney World Theme Parks (subject to availability, voucher required, block-out dates apply; nontransferable and void if sold).
AAA Vacations keepsake luggage tag (one per person).
Hertz Complimentary Child Seat - Add a Hertz car rental to your AAA Vacations package and request one child seat at no additional charge (restrictions apply).