Just when I thought I'd read it all on the S/D, I read the roll out bed is free for children, that is great news! I echo all your sentiments and I'm trying to talk my sister into staying at the Dolphin with us this April (she's staying at PO-R, and by the time she is done with the trundle, etc., we are paying much less at the Dolphin with the DC discount). She just loves that food court at PO, and the boat to DD which they just brought back.
Oh, well, that is why they made chocolate and vanilla, but you can certainly stay at the Dolphin with lots of discounts, I know we do (we bring groceries/breakfast items, buy milk and juice, etc.)