I&#x27;m sure the failed entrepreneurs in this crowd (I&#x27;m one of them) here will find it easy to refute that point.<p>High-quality product is nothing without leads (i.e, potential users, buyers, downloaders, etc), and one way to get consistent, reliable  way to get leads is through promotion.<p>Then there&#x27;s branding and awareness, which is probably what most ads these days are meant for.