If you define "best customer" as the customer who pays you the most, then I guess it’s not surprising that the reflex instinct is to charge them more. After all, they’re happy to pay.
But what if you define "best customer" as the person who brings you new customers through frequent referrals, and who sticks with you through thick and thin? That customer, I think, is worth far more than what she might pay you in any one transaction. In fact, if you think of that customer as your best marketer instead, it might change everything.
via Seth’s Blog – How should you treat your best customers?. I love the thought of flipping the idea of what a best customer means.