I wouldn't get a "living tree" either. Those balled and burlapped trees rarely live beyond the holiday, and take a huge amount of effort. My understanding it that their production isn't as beneficial to the land as the regular cut tree. Most importantly, I don't have anywhere in my garden to plant such a tree, if it were to live.
What I would like to see is the use of invasive trees as holiday decoration. Those siberian elms have an attractive winter branching structure, especially when at a height that would be useful for indoor use. Although deciduous, I remember the Laura Ingalls Wilder book where in the story (was it "The Long Winter?") they didn't have any evergreen trees on the plains, and they used a deciduous tree, and decorated it lavishly. I did this last year, when due to travel, we would not be around to appreciate or dispose of a cut evergreen tree, and decorated the bare branches of a siberian elm in my house. I thought it was beautiful, in a more spare, modernistic way. I took the idea from Sunset magazine (see Sunset.com or Dec. 2005 issue - photo from their article, below).

Here's my version this year, also with siberian elm:
As it turns out, I was outvoted. We got a cut tree (top photo). It is delightful. And fragrant. And I got to unpack the ornaments.












