If the seller is "Amazon Warehouse Deals" you're getting a returned unit at a discounted price. It's not a secret, nor is it a scam, it's simply the outlet Amazon uses to liquidate open-box specials. It's how I got my second 436. It was programmed for a location in Kentucky when I got it, but had all the factory accessories, no scratches or dings, and works fine. I paid $360 for it, which IMO rs a reasonable price for a like-new fully functional unit.