YMMV - Genie Silentmax 750 at Home Depot for $96. Others are marked down as well.
Was looking around the HD and found they marked their garage door openers down. I recently installed the Genie for a friend and would highly recommend it. Very quite and easy to program / install. They also have chamber liens marked down. Not sure if this was just at my nearby store - but figured 50% off is a good deal.