We don't really drink wine, and when Wifey does, it's the cheap stuff (Riesling Piesporter something), so bringing wine on and paying a $25.00 corkage fee(plus 18% gratuity) won't work for a $10.00 bottle of wine. She can just buy a glass or two in the dining room, or buy a bottle the first night, and they keep it corked for her throughout the cruise, and have it on the table when we come in the next evening.
We were looking more at trying to get rum, etc on board.