A successful retail business is all about getting the numbers right, especially the scale of those numbers. Retail empires start small, usually driven by the owner’s passion for a certain field or interest. Let’s say you know everything there is to know about fly fishing. You’ve tried everything, every piece of equipment, so you know what’s best. You leverage this skill and know-how into your very first retail shop. You are in the best position to give good, professional advice to your customers. You know which manufacturers are for real, and which ones make shiny but useless pieces of equipment. So you start your business and quickly become popular among sport fishermen. The sky is the limit now. Or is it?