- Edited
Well, I think I understand people who use it. I very rarely use the numpad, it is too far off for me, and wide keyboards are in the way of the mouse. I sometimes contemplate 3 seconds the green num-lock light when booting :-) Just like one contemplates the little hole in the inner pane of an airplane's window :-)
Thing is, when I type in numbers I usually have to double check them anyway (bank account numbers, constants when coding) and it is shorter for the eye up from the number keys. Or I use cut & paste, or a proper one-time calculation (constants, etc.). Anything else in programming are usually 0.0, 0.5, 1.0, M_PI, UINT32_MAX or the fancy std::numeric_limits<uint32_t>::max() (attempt to ridicule some of C++ ) or predefined constants.