Finder is not all about beauty. What I like most about Finder (which makes me cry every time I have to use Windows) is QuickLook. It's SO much easier to quickly glance at a document than anything WE has to offer.

I personally hate ribbons, but I think for the average user they are great, and much easier to use. So I'm not defending Apple here, I'm just saying that It's not all about beauty or slickness; Finder is also powerful, but in its own ways (only if it had tabs...)