I heard it somewhere else, and so I checked the passholder web site. The Tables In Wonderland dining discount card (used to be called the Disney Dining Experience) went up to $75 from $60 for Annual Passholders (I believe it went from $80 to $100 for FL residents). A second card, which used to be $25, is now $50!
This means the actual increase in cost for one card in the end $60, since you need to order more food in order to break even...
