I have one of each too. I say the wifi is my wife's. We use it around the house a lot, replaced the laptop. The wifi isn't that good (yet?) and there are places in the house where it will not hit. Since it can be spotty, which is irritating to me, I just leave mine on 3g and I went for the unlimited data plan. Also when we are driving my wife uses the 3g to look up things, to use Zillow and RealEsate.com, and the like. She likes it also as I like to go shopping with her now, and I sit in the car stream Netflix, watch podcasts, read mail, etc. To do it all over again, I'd just get the 3g, but this way we can each have ours set up the way we like.