Here are the special cashout rates:
$25 Disney Gift Card for 24 credits
$50 Disney Gift Card for 48 credits
$100 Disney Gift Card for 95 credits
$150 Disney Gift Card for 142 credits (will come as 1 $100 card and 1 $50 card)
$200 Disney Gift Card for 188 credits (will come as 2 $100 cards)
As you can see, the more that you earn, the more you will save. Cashing out for a $200 card is the equivalent of a 12 credit bonus!