IMO businesses selling apps have dug their own grave in the customer relationship department. In the last 20 years I've only had 2 or 3 tech support experience

IMO businesses selling apps have dug their own grave in the customer relationship department. In the last 20 years I've only had 2 or 3 tech support experiences where someone helped me solve a problem I'd consider non-trivial. Businesses have cost cut and devalued support so much that it's not worth having a relationship with them. They only want a sales relationship and you're on your own when it comes to support. What does having a relationship with them get me as a customer?