Scarcity Makes The Heart Grow Fonder
My wife hails from Springfield, MO, and in the early days of our marriage we made frequent driving trips to visit her family there. For the return trip we'd pack the trunk with cases of Coors for ourselves and to fill orders from friends. As time passed Coors got distributed nationwide, and the beer revealed itself as a rather humdrum product. To my modern taste, and in accordance with its market share, Coors is one of the most inferior mass-marketed brews.
Nonetheless, there's something intriguing about this notion of scarcity marketing. Put on your thinking caps and see if there's a way to make it work for your clients.