I&#x27;d be very surprised if running the database to store that information is the major cost for running the service, and at any rate I&#x27;d say your pricing should be a good match for the value you provide to customers, not your costs for providing that value.<p>I&#x27;ve been considering using your service for a while and it would be useful for us, but I couldn&#x27;t justify paying what it&#x27;d cost us to use it.