One of the first things most people notice when going from a DS Phat to a Lite is how seldom the newer model requires charging. If there's any one benefit between models, it's the battery life. Unsurprisingly, we play a lot of DS around here (at DS Fanboy? You don't say!), and not having to charge as often is just awesome. Still, this blogger, at least, plugs it in once or twice a week, just to keep that green light glowing.
How often do you charge your DS? If you upgraded models, do you notice the difference?