This sensor has a 55 mm diagonal vs the 43 mm diagonal you see on a full-frame sensor. That's 1.7X the total sensor surface area. I guess there's some people

This sensor has a 55 mm diagonal vs the 43 mm diagonal you see on a full-frame sensor. That's 1.7X the total sensor surface area. I guess there's some people who will "need" this, but the vast majority of photographers (even professionals) can make do with smaller and cheaper cameras/lenses. I have an M4/3 camera on the other end of the scale that fits in my jacket pocket when I put a pancake lens on it.