I am lucky to live in the wilds of New Hampshire, USA, where balsam, pine, hemlock, etc grow in profusion on lands that were sheep pasture until about 50 years ago. The land my husband and I bought last year, on which we plan to build our home come spring, has "Christmas trees" of every size and shape. I plan to nurture some for future Christmases, being sure to replace every tree cut with two in spots that need a tree.
This year, however, we are renting a tiny cottage with NO ROOM- stuffed with the combined precious belongings of two devoted pack rats. However, I have a Norfolk pine that was given to me in my first year teaching in the local school, 13 years ago- it was about 4 inches tall, in a tiny plastic pot, and I somehow felt moved to re-pot it and tend it over the years. Now it stands at over 4 FEET tall, and the pot is so big and heavy it takes 2 to move it! It stands in the entry hall, waiting for the day (closer to Christmas, around the solstice) when we'll somehow find room in the living room (not too close to the wood stove!) and put a few lights and baubles in it.
Who knows? It may end up being our future tree, and then none of the trees on our land would have to be cut. But I agree with PoppaGator, that there's nothing like the smell of a fresh-cut tree. And there's just something about bringing in the greens at the dark time of year!

Allison