The treats in the case in the Cove Cafe and Vista Cafe are complimentary. You don't have to purchase a specialty coffee or drink to have some. Also, the selection changes during the day. At about 6:00 pm they take away the sweet treats and add in savory treats like cheese, crackers, olives, celery and carrot stick and some dip.
Also, the last row of the Buena Vista Theatre on the Magic and Wonder have less leg room than the other rows. Avoid sitting there if you are not a kid. I saw so many people trying to cram themselves in there and looking very uncomfortable. Trust me, the other rows have more leg room.
In Cabanas on the Magic/Wonder (soon to be Cabanas) there is a staircase in the back on the port side that leads down to Deck 8 passenger cabins (from there there is also an aft stircase that leads down a few decks). These stairs are in addition to the regular aft stairs near the elevator lobby. So, if you are on decks 7 or 8 aft it is really easy to run up to Cabanas and back down. Remember to get a hand wipe at the regular entrance though.
MJ