Why? I'm an "artisanal programmer" at heart, but for the past year I've been using these to great effect. A car that needs to be started with a hand-crank and occasionally stalls is still a car.
I do hand programming for myself now and use the right tools in my office, because I'm a responsible adult who understands that I am not paid to have fun or feel special and smart - it's to produce a product for my employer.