I am on my last day of a 7 day Alaska cruise on the Solstice and can confirm that I wasn’t charged any extra in Luminae. The Decoy was priced at $17.
The only place where I paid extra for drinks was the World Class Bar where the following drinks were $19:
- Azteca
- Violet Hour
- Zacapa Old Fashion
I did order a Zacapa Okd Fashion while in Luminae and wasn’t charged extra.