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(c) Copyright 2001 Daniel Bricklin
Financials of the System

Small version of diagramIs there enough value to attract new users?
Effects of new users on cost and value
Cost of acquiring new users, and cost of keeping users active and coming back
Architecture effects on cost:, Napster, CDDB
Effects of each user on permanent costs, e.g., storage, maintenance
Decay of donation rates and decay of the value of existing donations
Decay of use affecting usage-based value and donations