The restaurant business
In the restaurant business, everything happens by personal recommendation. The only way you’ll try a different restaurant out of the overcrowded market is if a friend tells you it’s the best mexican food. Hence, you win if you genuinely nurture your core group of evangelists and make it easy for them to share their passion. It’s all about caring and building an amazing experience for them and ignoring the rest.
Whether you sell shoes or web apps or model planes, you’re probably also in the restaurant business.