I'm the vista style fanboy of the night so, my opinion:
This skin especially, but the vista stlye clone wars included: occupy a niche of skins that are easy on the eyes, sexy, fast loading, and still good for a production machine.
Yes, its fun and personality and creative to make windows look like something its not. But that causes a lot of problems in itself. For a time i used really stylish skins, and nobody else could figure out how to use my computer ;( It slowed down my interface. It caused errors with my programs. I couldn't read certain things. It was unstable. It was just simply unusable. Until Vista style, i only ever used Luster consistantly.
Royale vista is an amazing skin. I mean its just perfect. Its fast. It doesnt run in to redraw problems. It works from adobe apps to macromedia to shell and Office ( 99% of good clean slim skins i've tried don't work in Indesign. This does!! ).
There is a reason why this skin is so popular. It's a good skin. It is a style that is comforatble with a lot of people who want to make windows look different, while still being functional.
I don't think that's such a bad thing, snow.
And i think that's a reason why vista is such a cloned style.