I for one, like the F-keys and hate the new MS and Logitech approach, assigning the Fkeys to a specific function, and having to press the F-lock button if I want to use them. It gets annoying when you press F1 in a game, and you get Microsoft Word popping up, asking me which file I want to open :\.
Also, I find the F-Keys useless because when I go into bios, I have 2 seconds to hit f-lock, and f1, and its really annoying (as opposed to spamming F1 until the computer gets the message

).
I also know most of the windows keyboard shortcuts (involving, or not involving the F-Keys), so I dont really see a need why I need to reassings these FKeys to something I can do with contrl + ____.
Just my 2 Cents.