Living alone and not having people over for the main event of the season (December 24th in the evening) I usually don't bother with a tree... But I do have some decorations that I put up and one of them is in the general shape of a tree:
I would never
buy a plastic xmas tree, but when I saw this white version in IKEA a couple of years ago I caved. Maybe because it doesn't pretend to be a real tree... I mean: there's no albino chlorophyll, is there?