Defeating Feature Fatigue (2006)

Design products with just enough features to stimulate sales and ensure they’re easy to use once customers bring them home. Balance Initial Sales Against Ease of Use Use analytical tools to identify the optimal number of features for your products. Even marketers, who are trained and paid to understand the majority of consumers, are led to believe that more is better by economic theory and standard market-research techniques—both of which use models that predict that increasing the number of positively valued features makes products more appealing.

Source: hbr.org