They are valuable for several reasons: 1) They may give you feedback 2) You can track + analyze their usage 3) They may refer peers 4) They may become 'paid cu

They are valuable for several reasons: 1) They may give you feedback 2) You can track + analyze their usage 3) They may refer peers 4) They may become 'paid customers' In a vacuum, non-paying customers may not be super-valuable. However, if these non-paying users have good experiences with your product/service, it is possible they are adding more value to than they cost. Remember, the marginal cost (per user) for many web apps is minimal.