Masks for Christmastime?

I took this picture last year, right before Christmas (I believe it was literally the 24) in a nearby garden centre, right in the Christmas section. Masks. I have to say, they intrigued me, because one would not expect party masks, these kinds of party masks, for Christmastime. Then again, I thought, maybe you could. It reminded me of the scene in Eyes Wide Shut showing a, ahem, secret ceremony. I looked at them and wondered if there was such... special events, on invitation only, where masks and anonimity were de rigueur. Especially since the garden centre was very near the hotel where my brother PJ and parents stayed during their time here. A hotel which reminded PJ of EWS. Since I saw these masks, and as I associate the film with Christmas (see my post here), I can't help wondering how people with lots of money do to celebrate Yuletide...