Reverse polarity

I recently bought a 3 litre bottle of vodka with the intention of fixing it to the bar. Since vodka is my highest selling spirit I am often disturbed from my power nap/siesta by requests to change the empty 1.5 litre bottles. My rationale was to refill the three litre bottle with 1.5 litre bottles in order to reduce the risk of being disturbed in the future. Also a three litre bottle is a good conversation piece and an effective point of sale marketing device but is relatively more expensive.

On a busy vodka swilling Friday night, members from the science fiction community of the 1980's decided to refill the empty smaller bottles from the three litre bottle. When challenged the reply was they thought the 3 litre bottle would be cheaper because it was bigger therefore that was why I bought it and in any event, one of them wanted the empty bottle to collect his loose change in.