I can't speak for GP, but I'd pay for Path Finder even if all it did was give me cmd-x to cut, and enter key to mean open instead of rename. It does a ton more, but those two are the killer features for me (Tabs used to be one too, but Finder finally got those a while ago).
I definitely agree with you on the lack of cmd-x for cut. However, you can do cmd-c to copy, and then cmd-option-v to move files rather than copy them.
Enter to rename and cmd-o to open was hard to adapt to when I moved from Windows, but it's second nature now.
Using the distinction of paste as copy vs paste as move, instead of overloading the cut metaphor is a better choice semantically. When you cut text or images from a document with ctrl/cmd-x the content is deleted immediately. It’s weird and inconsistent that in windows the files get greyed out and if you don’t paste them they... eventually look normal again when you put something else in the clipboard? Modifying the paste with option on mac is also consistenT with option switching between move and copy while dragging files.
