From a midnight buffet perspective, I just expect it to have some sort of edible food. It’s midnight. You’re drunk. To complain about the spread, is silly.
At the slot machines, you can "Charge to room" for no charge. This then goes to your "Player Bank".
At the tables, if you "Charge to your room", there is a 3% charge.
At the tables, if you get funds from Player Bank, there is no charge.
They do have some Ports throughout the ship. Generally something like Six Grapes Port.
This is a perfect example of bringing on the one bottle allowed per person.. Ports are a great wine to bring a good tawny, 10, 20 or 30 year.