Some people object to my classification: âHow great can a product be if no one wants it?â In other words, is the quality of a product determined by how attractive it is to a large number of customers?No. Product quality and market size are completely different things.Here is a classic scenario: the best application in the world for an operating system that no one uses. Ask any software developer for BeOS, Amiga, OS / 2 or NeXT what the difference is between a great product and a large market.