Was talking with a friend (from the York PA area) today. He mentioned that a couple of LBS's around him were only selling wired cyclometers, as they had been having problems with wireless units. Not talking fancy-just your basic cyclometer. I have 4 diff.brands on 4 diff bikes-2 have some age, 1 is relatively young, and 1 is new. Not a problem with any of them. Have you heard anything like this--sounds to me like maybe they're trying to sell the less popular wired units, but I would hope a LBS wouldn't stoop to falsehoods regarding wireless units. Anyone heard of problems with wireless units--it's a first for me.