Nope, it's worse. Prices will be raised on people in too tough a spot to go somewhere else. Grandpa and John will pay the increased price because they don't have cars and this store is either the only one close enough to walk to or the near a bus stop within a route or two. If they raise the price on someone with more money, they can probably choose to go somewhere else. Unless all the chains cooperate on individual customer based price fixing I guess. Quick, someone patent that, if it hasn't been already.