A very good point! This is something I have been thinking about for a while.
That and the fact that the transmitter coil is two separate pieces has me seriously considering going to the N5 from the Freedom.
My (now) backup controller button is basically squashed flat and makes extremely difficult to turn it on/off. Paying for a new controller is no picnic. Those transmitter coil wires also eventually give out after about 1 1/2 or 2 years which at $200 a pop is no cheap affair either.