With many tablets and phones, they never leave either. People install them and forget about them. Hell, many are a pain to remove. My old phone had the micro SD slot under the battery. I would have to take the case off, the back cover and the battery to get to it and the SIM card.
And that iPad pic, you're looking at the shielding under the display, that doesn't give an accurate idea of space.
And some people get obsessed only when the topic comes up. If they only ever talked about it, then you could say they lacked perspective.