MATLAB, Mathematica, Maple, Labview, IDL, wasn't there an article here that R just recently passed S+? Turns out scientists and engineers are still willing to pay for tools.
Oh yea. I actually have 3 of those installed since my university has free student licenses. I'd never have considered buying them, but maybe after several years of use, I can imagine my future employer paying for it.
I hate Labview with a passion(needed for data acquisition in labs), I barely use Mathematica, and I'd be fine with using Scipy over Matlab, but Matlab is actually nice for quickly doing some analysis and graphs.
