There are 6 people total, so it would be 5 without the organizer.
The thing that really bugs me is that he decided to extend his road trip from 2 to 5 weeks. Also, he is actually getting back in town the night before. That is what really bugs me. He still has plenty of time to get some sleep and make the tasting, he just doesn't feel like making the effort.
We normally have beer tasting events. The mead is new to us. One brewery we like produced mead one year, which is why we decided to try it. Anyway, I could very easily turn the mead tasting into a regular beer tasting, as everyone in the group is cellaring numerous beers that we could open. Thanks for that suggestion. I am leaning in this direction since I think it might be difficult to get the mead bottles. Given the organizer's inability to stick to plans, I wouldn't be surprised if he extends his trip another week, leaving the mead locked in his apartment with no way to access it.