Not every piece of software that needs to store data is a CRUD application and "little side businesses" are not the only use cases for an embedded database. For

Not every piece of software that needs to store data is a CRUD application and "little side businesses" are not the only use cases for an embedded database. For example, an embedded application logging readings from a number of sensors could easily reach thousands of writes per second. Another example would be a desktop (or mobile) email client such as Apple Mail using SQLite to store data, it could easily reach thousands of writes per second when e.g. downloading the entire mailbox from an IMAP server.