" In fact, the prospects for growth and improved profitability in upmarket value networks often appear to be so much more attractive than the prospect of staying within the current value network, that it is not unusual to see well-managed companies leaving (or becoming uncompetitive with) their original customers as they search for customers at higher price points. "

― Clayton M. Christensen , The Innovator's Dilemma: The Revolutionary Book that Will Change the Way You Do Business