NodeChef Managed Discourse Hosting is sold as a monthly service. For starting price of $20, you can have production-grade features like High Availability ensuring your forum is always up, Free SSL Certificate saving you money, Extensive list of community supported plugins, Bare Metal for high performance, Auto Scaling, Continuous backups, Dedicated database, S3 file storage, and many more!
To learn more about how to get your Discourse forum up in less than 3 minutes, visit the documentation page to get started.
Let me know if you have any questions. Enjoy!