It's always a risk buying damaged equipment. I have purchased some with good results and great savings. I don't think, however, that I would want to spend a lot of money on a damaged keyboard. Do you have the ability to play it and look it over real good. I would think the Genos is a pretty sophisticated piece of equipment and who knows what a drop hard enough to dent it could do internally. Wishing you the best of luck on your difficult decision.