"Our products are so good that nobody is willing to pay for them" doesn't sound very convincing.
Are you not convinced that Google Search, DDG, Gmail, Facebook, WhatsApp, Snapchat are all "good" products in the eye of many people? As far as I can tell, all of those products are paid for by sponsors.
Indeed, networks effects may sometimes be relevant to some of these tools. But that's certainly not always true.