While I don't have an MBA, it's hard to believe that a calculator I learned how to use in 1987 during undergraduate business courses is still the standard for the quick calculating financial world. Any finance professional over 30 will know how to use this, and in a pinch, you might need to know how to use it. I know the TI-8x series has financial functions and the graphic capabilities may make those calculators worthwhile. But for most financial pros, if it can't be done on an HP12C, then you probably need a computer.