Like so many things, it really depends on what you're doing. I've worked a lot of different jobs, and some absolutely require a numpad and some I've never touched it. What people really need is programmable keyboards. If you need a numpad you don't have to even move your hands if you program it right. Same with function keys. It's better for you long term. So I'd actually suggest a smaller but programmable keyboard for everyone, even if they don't use the numpad, plenty of great features on these keyboards.