Maybe I'm just goint to say what you're saying in a different way, but...I think the main thing people don't get is that the iPad is more of an appliance than a computer. ...
I think the difference is people argue more about the feature list instead of what they're actually going to use it for (with some exceptions). With the way I work, I'll only have desktop computers plus an iPad. I always hated laptops anyway, so this is a very good thing.