And I also think gaming mice are highly overrated. The PC-enthusiast market is getting saturated in 'gaming-culture' gimmicks, and 'gaming' keyboards and mice, the way I see it, are overkill. The only thing is they may sometimes look cool, but as far as performance, it's not like gamers are some super Olympic athletes who needs aerodynamic suits or perfectly formed pairs of running shoes.
You are very wrong. You have either never owned a good gaming mouse, or you've only ever owned a gaming mouse.
Once you go from oldschool crappy optical to awesome laser mouse like the G5, it's just amazing! I use my G5 on highest sensitivity (2000DPI) and I am still very accurate with it. With other mice, I have to turn sensitivity down because they just aren't as good. Not as precise, smooth, responsive...etc.
Gaming mice are so much better than just regular cheap mice. I'm not so sure about keyboards...I can't see why any keyboard would be better than another keyboard, it's just a simple matter of pushing a key. The only thing I can see is maybe ghosting and lower latency.
I have a Saitek Eclipse keyboard...not sure if you would call that a "gaming keyboard", but I can't really see much difference over others for gaming.