Ahh, I was assuming the parent to my comment was implying that people who don't already have Mathematica should check it out for general-purpose programming.
If you've already bought Mathematica, great, use it for whatever you want! However, I don't think you should buy it unless you actually need its advanced features.
I'm just saying that it'd be a ridiculous "general-purpose" language because anyone who wants to use it must shell out nearly a third of a grand.
I think it fills a fantastic niche for math and science, where its powerful capabilities really come in handy. But general purpose scripting? Silly.