It is about two things, one superficial and one deep:
1) these things are pretty and the physical design is fun—- and their appeal is universal across age and gender
2) the EVF/OVF technology is at its best in this specific device.
Both of these things combined are clearly worth the extra money; this camera is likely going to be difficult to get hold of in some markets for some time. Late demand for the X100V was astonishing.