The document discusses why digital marketing is important for businesses in today's digital world. It notes that digital marketing costs less than traditional marketing, can be easily measured, has a wider reach through online media, is less invasive than other marketing methods, directly targets the intended audience, and allows interactive experiences that blend the digital and physical worlds. The document emphasizes that digital marketing is crucial for business survival and advises companies to invest in it to build a solid customer base and succeed in this digital age.