Using Database-as-a-Service (DBaaS) can significantly streamline database management and reduce costs, enabling development teams to focus on building scalable real-time applications. The text compares DBaaS to consumer services like dining out, emphasizing its potential to lower expenses by saving time and resources that would otherwise be spent on managing databases in-house. With DBaaS, businesses can avoid the complexities of hardware and infrastructure management, much like opting for a gym membership over building a home gym. An effective DBaaS offers built-in expertise for optimal database setup and configuration, akin to hiring a tour guide, ensuring efficient resource use and fast deployment. This approach can accelerate a business's time to market and leverage cloud credits for further savings, while also providing a low-cost entry point compared to traditional database management methods. Aerospike's DBaaS offering is highlighted as a solution that combines these benefits with real-time capabilities at scale.