You're off on a tangent trying to prove a point that is so painfully obvious that only the stupid say it. If a place stocks an item and they're the only place that stocks it, their price is neither (or both) the best and worst price all at once since they are the only one selling it.
Thanks for saying the obvious.
Did you answer the OP's question yet? You're real busy trying hard as hell to answer to me and a question that the OP never had.