I shouldn't have mentioned money. I apologize for that but I was trying to make a point. Resolution is nice but it's only one of the many items needed for great picture quality and resolution is about the only positive of the iPad. It fails in every other critical area. Still an amazing device though.
I think I can safely say that a $10,000 projector is not quite as portable as a $750 iPad.
And, even if the iPad were the only device in someone's home capable of displaying movies, I think it's a great choice because for $750, you can do so much more than simply watch a movie. Plus, $750 might get you a decent plasma or lcd display, but you will still have to buy components and physical media. Digital distribution is much cheaper.
But sure, if you can afford it, drop those benjamins on a home theater system. I don't think there's anything wrong with the fact that you mentioned money, but your argument didn't really make sense anyways.. ($10,000 Vs. $750??). And the whole fact that the iPad is a mobile computing device whereas a projector is a.. projector.
It reminds me of the parody that sarcastic gamer did of the microsoft surface lol. "Why use one of today's more popular, portable models, when you can do the same thing with a device the size of a small car?" lol