Then remember Henry Ford: "build product to satisfy 80% of customers. 10% will change mind and 10% will pay additional money for customization". With knowing o

Then remember Henry Ford: "build product to satisfy 80% of customers. 10% will change mind and 10% will pay additional money for customization". With knowing of Pareto principle, this mean, first step in development should satisfy 20% TYPES of most frequent requests, which are usually 80% of all requests by quantity. Second step should been discussed with marketing, to invest into real things, not into ephemeral numbers.