Anything ending in .97 is a clearance item, so there could be a few in some stores somewhere, or none at all, and the item just hasn't been taken off the system.
its true, this is a ploy to get more traffic to their site and to get more people to come into store. Most of the time as soon as the offer comes into force the stafff there simply put the top bargins behind the scenes and either buy themselves or sell to folk they know.