For those who consider the champagne to be of no value, ask your cabin steward to swap it out for a bottle of wine. We have done it in the past and did it again on a fall Vista cruise to Canada. The wine isn’t great but better than flat champagne.
Another concierge perk only briefly mentioned is the newspapers in the lounge. If you still like a physical paper, they have New York Times, Wall Street Journal, USA Today, Finncial Times, etc.