This feature alone is enough to warrant the PathFinder price tag:
If you spend any time on Windows, you know that the Mac Finder is missing cut and paste in the OS. Don't even get me started on the other awesome features of PathFinder or this post will take all day to write. Let's just say the Drop Stack functionality is insanely useful. It's such a deep and well thought out application. Checkout the CocoaTech screencasts.