Heh. That's exactly like my family. Check out some of these pics from my parents' house. Keep in mind that we're all atheists---and yet my Mom puts a Martha Stewart Christmas to SHAME.
Last year, Mom & Dad had just moved into a new house, so Mom told everyone that Christmas would be a "low-key" affair. Here's her version of a low key Christmas:
...and my hubby thinks I'm nuts for putting up a tree!