I was also very much intrigued about the Genesis motors. Seemed like a great motor, but there must have been a good reason that MK discontinued them. It still is the only motor with automatic stow and deploy. A fantastic feature that I can't understand isn't offered on newer motors unless it is cost prohibitive. Some of the cons I hear are that the AP flakes out and it is nearly twice as heavy as other trolling motors.
You can find them used, just expect to pay anywhere from $500-$800 depending on condition and options. FWIW - I bit the bullet and bought a new MK v2 PD with AP and US2. With that comes a 3 year warranty and peace of mind that should something go wrong it is covered.