Short answer: Fake
Long(-winded) answer: When I was little, we ALWAYS had a real tree. We'd usually go to a tree farm and cut our own down, which could be a lot of fun. But as the years passed, it became more and more of a hassle. It all came to a head a few years ago when it was about 20 below zero and we're sitting in our driveway, trying to figure out a way to cram the tree (which was far, far to wide) through the door. Also, my dad kept having to saw off pieces of the bottom of the trunk, so it would be level. This is a rather frustrating task when the tree sap is completely frozen. I think it ended up taking us 3 hours to finally get the damn thing inside. That, combined with my dad's and my sister's allergies pretty much put the seal on any future real trees making their way into our house. The next year we bought a nice fake tree and, while I sort of miss having a real tree around, we've been really happy with it.