Probably, if I still were using KDE3 instead of KDE4, I wouldn’t feel this way, but in fact I do. I think I’m going to switch to ROX. I used ROX-Filer’s pinboard as my desktop for many years, and it was okay; as a file manager it may even be called superior. The main hindrance is a relative lack of Gentoo support, though there does seem to be a project. And fluxbox integrates with ROX somewhat.
What I might say about both the GNOME and KDE projects is that they change too much from version to version.