Tasting classes run $20-$25 usually
Generally, booking a private excursion is cheaper than booking a
DCL excursion.
Captain's Party? Are you asking about the
Castaway Club reception? That's for Gold and Platinum CC members. Or Captain's Gala night? Not really a special party, just a theme for semi-formal night on most cruises that have it. I'm not sure that the Alaska cruises have the Captain's Gala night.
As noted, you will be assigned to a specific Character Breakfast seating. In the past it's been on the first sea day after the first time you dine in Animator's Palate. And it takes place in Parrot Cay. On the Alaska cruises there are only 2 sea days, so they also use the Ketchikan day as a "sea day"
My personal preference for Palo is brunch. Not a fan of the Northern Italian menu at dinner.