The slowest and most expensive way to grow is with a transactional strategy.
When you acquire a customer they only buy from you one time. Usually because it was convenient or cheap.
The fastest and least expensive way to grow is with a relational strategy.
When you acquire a customer they buy from you more than once. Because the experience you created formed a relationship.
A good example here is getting a haircut.
When you go to a quick service chain brand the experience is quick, cheap and they’re everywhere to make it convenient.
Or you can go to a barber shop that offers you a beer, a better haircut and creates an experience that builds relationships.
Relational > Transactional