In addition to my previous reply, ask yourself this: How would you do it? There are some serious technical challenges, and the FAQ and accompanying paper ment

In addition to my previous reply, ask yourself this: How would you do it? There are some serious technical challenges, and the FAQ and accompanying paper mention some. It's not easy, so "just for the challenge" might be an answer. "To learn stuff" is another. In short, the value isn't always in the destination, it's sometimes in the journey.