Alterations in consumer behaviour at Christmas time, and featured in national press reports, have been noted by those who market in the sector.
Apparently we are drinking more fizz, such as Prosecco, in favour of port/sherry, goose is replacing the turkey, and pannetonne the Christmas pud We are dumping Christmas cards in favour of a much cheaper email message, or posting on social media, using real fir trees in place of the artificial and listening to seasonally themed chart hits, even if recycled, rather than Christmas carols.
Now you know.