Well, at my house - forced hot air heating + tree = holy water consumption Batman!
Two years ago we had our last real tree, and it was a nightmare. We started watering it bi-weekly, but it started to ger very dry and frail. Okay. Once a day. Nope. We ended up watering it twice a day. The tree took 2 gallons of water a day - and I'm not kidding.
Bought a decent fake tree, and short of the smell, once it's decorated - you'd never know the difference.