Possibly of relevance:
http://www.fastcompany.com/1285202/myth-rational-buyer-how-too-much-thinking-can-hurt-your-brand
http://www.fastcompany.com/1285202/myth-rational-buyer-how-too-much-thinking-can-hurt-your-brand
For God's sake do not breath a word of that to Penzance smoker wannabes and addicts!customers will always get what they want,
In theory, competitors arise with products that offer the same advantages. However, many people shop by brand recognition or other factors, making this difficult.What happens when the supplier refuses to meet the demand?