Someone posted this on RADP:
2003 Passholder Benefits:
-$4 off adult, $3 off child tickets at PI, DQ, water parks
-seasonal hotel discounts - check Mickey Monitor
-10% discount off lunch Monday thru Friday at listed resort hotel table service locations - locations are: Sand Trap Bar and Grill, Concourse Steakhouse, ESPN Club, Trail's End Buffeteria, Grand Floridian Cafe, Olivia's Cafe, Kona Cafe, Whispering Canyon Cafe, Yacht Club Galley
-10% discount off lunch Monday thru Friday at Epcot restaurants listed - Alfredo's, Biergarten, Garden Grill, Le Cellier, Chefs de France, Teppanyaki, Nine Dragons, Akershus, Marrakesh, Rose and Crown, San Angel, Coral Reef
-10% discount off food at All Star Cafe at WWOS
-10% off various DD restaurants - Wolfgang Puck Cafe (West side), House of Blues, Planet Hollywood, Rainforest Cafe (both DD and AK), Portobello, Fulton's
-merchandise discounts - 10% on Leave a Legacy
-10% off World of Disney (does not mention minimum purchase this year)
-10% off Arribas Brothers Downtown Disney
-15% off various tours
-30% off golf
-50% off miniature golf for passholder, 15% off for up to 3 guests
-10% discount at GF Spa
-Complimentary O-Rays admission
-10% off Richard Petty driving experience
-10% off Sammy Duvall's water sports center
-15% off marina rentals at any WDW marina
-20% off Alamo Car Rental