KDE on OS X?

I came across this article on how to run KDE on OS X. KDE, for those who don't know, is a desktop environment typically found running on BSD and Linux, although it has been ported to several operating systems. My question, however, is why would I want to run KDE on OS X? I mean, really? Why? It doesn't give me anything extra really. Some will claim, "Now you have a *free* desktop environment." No, I don't. I had to buy OS X in the first place to be able to do this. So, it wasn't free. Others may claim, "You can now run all of this great KDE software". Yeah, but it's not that great.

I would just love to know, other than for just to be able to say that you can, why would I want to run KDE on Mac OS X?