Update: The tree came down on January 31. I could have held out at least another week or so. Needles were still not really shedding unless manhandled. But all is down and the tree is now secret wildlife habitat.
Many years back I had a Christmas tree that I swear lasted until nearly Mardi Gras. The needles just wouldn't drop and it finally turned yellow. It found a new home in the woods behind my parent's place. I think it held its needles for a year. Looks like I have another contender. It has barely shed any needles and continues to drink an ample amount of water everyday. I enjoy having a tree with its lights and ambience. If I could I would have a decorated tree year-round indoors. So if don't be surprised if come February the tree is still around.