How to Create a Sustainable Long Term Business That Has Meaning and Depth Behind the Lowest CAC

The term overall has become much more of a broad business and general management term. So how do you not just think about top line acquisition, but through to retention and LTV? I'm not sure that the world actually grows on hacking. But hacking in general seems to be less in favor right now than good old fashioned building the business and making a product that people love over and over again.