While I agree with most of what you said, if you already have an iPhone why do you need a camera on the iPad ? Wouldn't it be easer to use Facetime on your iPhone or desktop / laptop ? (Apple said they were opening up Facetime for use on other devices).
Shouldn't be asking a question to apple fanboys.... about why they need to have another apple device.
Every apple fanboy believes that they must have everything. They will come with any excuses they can find. Like their iphone 4 battery just died, so they cannot do a face time. They need to have iPad with a camera for back up. They don't care about macbook pro's camera. They want iPad camera.
Fanboys must have everything.