I agree completely. Little gnomes never sneak up on me and switch the wire from one device to another, then demand I go through weird unplug/plug rituals involving four levels of deep-presses to get the thing connected back to the device I want, all while 20 people are waiting for me to start a presentation. The signal doesn't randomly drop out or connect to the car that just pulled in the driveway. The batteries don't go dead.

The point is predictability. Wires have it, bluetooth doesn't. Yes, they predictably snag on things sometimes. In my experience, this annoyance happens far less frequently than any of the many annoyances that bluetooth brings.