I would buy it in a heartbeat; it's just that it'd make a much better case and happier family if I can get my pragmatic better half (my wife) to agree.
Movies? She'll say, we can watch movies on the TV.
Email? We already have a laptop (3 laptops!)
GPS? You got that iPhone instead of the iPod Touch, remember?
So, that's why I'm asking for some practical applications that would make her say, "hmmm, maybe that'll be really cool!" (After all, it's not like she's a total prude.. she's just a bit more practical than I am, thankfully.)
Or, maybe I need to come up with some creative future uses of the iPad?
(If Steve Jobs had put in a webcam, she would have already said yes!)
You don't NEED an iPad...you WANT one. Next question.