I understand your frustration with wireless input devices. There's a lot to be said for battery-less and interference-less keyboards and mice. I did own a nice wireless mouse for a while, but when the batteries died and I popped in an "old" USB mouse, I forgot all about being cordless.
I've also noticed using the same wireless mouse near my laptop degrades my wireless connection quality slightly (available speed dropped and faulty packets sent/received went up), possibly due to the similar 2.4 ghz frequencies in use with wifi.