I thought to myself the same you did, and was the reason why I ended up getting a full layout than a tenkeyless. If a switch ever fails or dies, for complicate it is, I would swap em for one on the keypad, since having to RMA my keyboard is not an option(I live far from any place I could RMA it[USA])
I sincerely would love to try the razer black widow, since I love razer mouses, I wonder how close to their mice quality are their keyboard
After 6 months with my Naga, I'm having problems with the left click, it auto clicks a second time randomly when I left click normally. I wonder if its the mouse or a virus or something. Happened me before with a non razer mouse after installing office or some add-on to it :S