The term from economics that describes the situation well is "switching costs". They're very high in this case, as comments regarding banks migrating away indi

The term from economics that describes the situation well is "switching costs". They're very high in this case, as comments regarding banks migrating away indicate. This book is a great overview of the economics of these kinds of situations: https://en.wikipedia.org/wiki/Information_Rules https://en.wikipedia.org/wiki/Information_Rules