Our general store is the same. They have model that come directly from the makers to wholsaler to dealer as quickly as all can process them. Then they have a few that seem to set around for a could year. I just recieve a handgun I have never seen in a gun shop that sat in a wholsalers stock for almost a year befor I ordered it.
Our general store does not raise prices ether on those older models. Might see two side by side with a large difference in price.