I would also wager that 99% of web applications have their data normalized between multiple tables requiring many joins to reconstruct the data for use by the a

I would also wager that 99% of web applications have their data normalized between multiple tables requiring many joins to reconstruct the data for use by the application. Document databases can provide a more representative structure for storing data than splitting the data across multiple tables and records. Scalability is not usually my primary concern for choosing a data store. It all comes down to choosing the right tool for the job and not always defaulting to use a hammer for all tasks.