There are several desktops avaliable for linux that are very beautifully polished, unless of course you mean the configuration methods. You will rarely ever find one of those desktops on my system. The unpolished ones are just so fun! For example, I use evilwm. This beautiful window manager has no buttons! It just puts a thin one pixel border around my windows. No icons or menus either. To run a program I have to type it into the command line. The only reason I would ever buy a mac is for the non-x86 hardware, and then I’d install linux on it. I suppose it is good to give windows some competition on their home-field though.