The Economist tells us

A typical Irish household is expected to spend €1,339 this year ($1,734), rather more even than the average American family and more than twice as much as a French one (see chart). That may be because the Irish expect a big family party with lots of children and gifts, while the French choose a good dinner of oysters and champagne on the 24th of December.

They also have a lovely chart showing us as top of the heap when it comes to spending on Christmas Presents. (See here for all of those words and pictures.)
What if you don’t like Oysters?