My brother is an avid cyclist, and he and his cycling friends, as well as our mutual boyhood friend who by chance ended up being neighbors with my brother, all have bicycle computers.
I guess they need them, but damn, does a recreational and go-to-the-store cyclist need a damn computer on his bicycle?
Back to my Luddite ways, I know, but I embrace computers and cell phones and now e-readers, and that is quite enough.
I take a relaxing ride of five or eight miles to get away from the computer for a while.